The pigment molecule in plant cells absorbs light Is the chlorophyll. Chlorophyll, any member of the most important class of pigments involved in photosynthesis.
the process by which light energy is converted to chemical energy through the synthesis of organic compounds. Chlorophyll is found in virtually all photosynthetic organisms, including green plants, cyanobacteria, and algae. It absorbs energy from light; this energy is then used to convert carbon dioxide to carbohydrates.
Chlorophyll occurs in several distinct forms: chlorophylls a and b are the major types found in higher plants and green algae; chlorophylls c and d are found, often with a, in different algae; chlorophyll e is a rare type found in some golden algae; and bacterio-chlorophyll occurs in certain bacteria. In green plants chlorophyll occurs in membranous disklike units (thylakoids) in organelles called chloroplasts.
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Howard looks at a sample of pond water in the microscope. He sees cyanobacteria and plasmodium, a type of protist. What is one difference between the plasmodium and the cyanobacteria?
The name of the genus belonging to the family Sporazoa contains the parasite that causes malaria whereas cyanobacteria do not include any parasite.
Protozoa, a single-celled creatures that can only divide within a host cell, include Plasmodium. Photosynthetic microorganisms called cyanobacteria were historically referred to as blue-green algae. The majority are found in soil, freshwater, and saltwater habitats.
Although most species are unicellular, some can stay connected and create filaments. Blue-green algae, sometimes known as cyanobacteria, are not actually eukaryotic algae. They are Gram-negative prokaryotes that fix atmospheric N2 in addition to performing oxygenic photosynthesis. Ponds, lakes, water streams, rivers, and wetlands all have them.
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Insects and vertebrates are the only two hosts for the unicellular eukaryote species Plasmodium. Cyanobacteria have also developed a wide range of morphologies. There are many various types of cell organisation patterns, from single cells to multicellular forms with distinct branching shapes.
The phylum of gram-negative bacteria known as cyanobacteria, commonly referred to as cyanophyta, produces energy through photosynthesis. Although they are typically not formally categorised as algae, the word "cyanobacteria" relates to their hue, which also serves as the basis for the colloquial moniker "blue-green algae”. The malaria-causing Plasmodium genus of parasitic protozoans belongs to the sporozoan subclass Coccidia. Worldwide, particularly in tropical and temperate regions, Plasmodium, which affects red blood cells in mammals, reptiles, and birds is a common parasite.
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what purpose do glial cells in the spinal cord and the brain have?
Glial cells in the spinal cord and the brain provide protection and support for neurons.
Glia are non-neuronal cells in the central nervous system (brain and spinal cord) and the peripheral nervous system that do not produce electrical impulses. They are also known as glial cells (gliocytes) or neuroglia. They keep the body in balance, form myelin in the peripheral nervous system, and support and protect neurons.
The primary function of glial cells is to support another type of brain cell known as neurons. Glial cells function as a secretarial pool for your nervous system and its janitorial and maintenance personnel. Glial cells may not perform the "big jobs" in the brain, but they are essential to their completion.
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Answer:
Glial Cells in Spinal Cord and Brain will protect the Neurons, Provide Nutrients to neurons and Remove the Dead Neurons by Phagocytosis.
Explanation:
Glial cells are supportive in function; they protect the neuron and help in formation of myelin sheath. They also provide nutrients and oxygen to Brain cells and also remove cell debris.They are non Neuronal cells which do not produce electrical signals.They are found in Central Nervous System and Peripheral Nervous System.Astrocytes, Oligodendrocytes, microglia and Ependymal are different types of glial cells in CNS and Schwann Cells,Precentral gyrus etc…are present in Peripheral Nervous System.Many Neurodegenerative diseases are caused due to damage of Glial cells.
Which phenotypic probability below is written correctly?
A.) 9/16 Round & Yellow Seed; 3/16 Round & Green Seed; 3/16 Wrinkled & Yellow Seed; 1/16 Wrinkled & Green Seed
B.) 4/16 Yellow Seed & Inflated; 8/16 Yellow Seed & Constricted; 4/16 Green Seed & Inflated; 8/16 Green Seed & Constricted
C.) 8/16 Yellow Seed & Inflated; 8/16 Yellow Seed & Constricted; 4/16 Green Seed & Inflated; 8/16 Green Seed & Constricted
Use the screenshot to answer this question.
Which letter choice is correct?
Because they eliminate microorganisms and aid to improve your system, antibiotics are the biotechnology I've picked.
How does biotechnology work?The use of biology to create novel products, processes, and creatures with the goal of enhancing societal and human health is known as biotechnology. Since the domestication of plants and animals as well as the discovery of antibiotics , biotechnology—often abbreviated as “biotech”—has been a part of human culture.
Medical (red), agricultural (green), industrial (white), marine (blue), food (green), industrial (red), and environmental biotechnology are the main subfields of biotechnology.
Biotechnology, which combines biology and technology, has a wide range of applications in a variety of fields, including agriculture, cell biology, plant physiology, virology, immunology, and antibiotics .
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appendages that propel bacterial cells through an aqueous environment include axial filaments and
Appendages that propel bacterial cells through an aqueous environment include axial filaments and Flagella.
What limbs do bacterial cells possess?
On certain bacterial species, the flagella, which are locomotional organs, and the pili (Latin for "hairs," also known as "fimbriae"), which are surface appendages, can be distinguished (Latin fringes). Both Gram-positive and Gram-negative bacteria have flagella, and their presence aids in identification.
What part of a bacterium permits it to move through a liquid environment?
Cells in aquatic environments can move by means of flagella. Flagella of bacteria function as propellers. They are brittle spiral filaments that protrude from the cell and spin in solution; they are made of flagellin protein subunits.
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Axial filaments and Flagella are appendages that drive bacterial cells across an aquatic environment.
Flagella, which are loco motional organs, and pili (Latin for "hairs," also known as "fimbriae"), which are surface appendages, may be recognized on some bacterial species (Latin fringes). Flagella are present in both Gram-positive and Gram-negative bacteria, and their presence assists in identification.
Flagella allow cells in watery settings to migrate. Bacterial flagella operate as propellers. They are brittle spiral filaments formed of flagellin protein subunits that protrude from the cell and spin in solution.
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which method do scientists use to track evolutionary changes over time? responses radiocarbon dating radiocarbon dating dna analysis dna analysis potassium argon dating potassium argon dating paleomagnetic dating
Scientists use several methods to track evolutionary changes over time. One of the most common methods is DNA analysis.
which involves comparing the genetic sequences of different organisms to infer their evolutionary relationships. Another method is radiocarbon dating which is used to determine the age of fossils, and potassium argon dating which can be used to date the rocks and minerals that contain the fossils. Paleomagnetic dating is a technique used to date rocks by measuring the orientation of the Earth's magnetic field that was recorded in the rocks when they formed.DNA analysis is a method used by scientists to study the genetic makeup of organisms, and it is one of the most commonly used methods to track evolutionary changes over time. DNA, or deoxyribonucleic acid, is the genetic material that contains the instructions for the development and function of all living organisms. By comparing the DNA sequences of different organisms, scientists can infer their evolutionary relationships. This is done by comparing the DNA sequences of different species, such as the base pair sequence of a specific gene or the entire genome.
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why do some high resource ecosystems have lower biodiversity than ecosystems with intermediate levels of resources? group of answer choices high levels of resources inhibit the growth of many species competitive dominants may exclude inferior competitors from resource-rich environments. high resource environments are often the most disturbed environments. predators attracted to resource-rich environments decrease biodiversity.
some high-resource ecosystems have lower biodiversity than ecosystems with intermediate because of option 1 high levels of resources inhibit the growth of many species competitive dominants may exclude inferior competitors from resource-rich environments.
Some high-resource ecosystems have lower biodiversity than ecosystems with intermediate levels of resources because competitive dominants may exclude inferior competitors from resource-rich environments. High levels of resources can lead to intense competition among species, with certain species that are better adapted to utilize those resources outcompeting and excluding other species. This can result in a smaller number of dominant species, reducing biodiversity in the ecosystem. Additionally, high-resource environments are often the most disturbed environments, which can also decrease biodiversity.
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which plant hormone is known as the stress hormone? A
Abscisic acid
B
Ethylene
C
Gibberellin
D
Auxin
Abscisic acid is plant hormone is known as the stress hormone
A plant hormone called abscisic acid (ABA) is involved in a variety of physiological activities, such as seed germination, stress reactions, and leaf and stem growth. It can be transmitted to different parts of the plant and is synthesized in the leaves, roots, and seeds of plants.
ABA has a role in the process of seed dormancy, which delays germination until the environment is suitable for growth. By causing stomata closure, lowering transpiration, and encouraging the accumulation of solutes in cells, ABA also contributes to the body's reaction to stress, such as drought. Additionally, it influences the opening and closure of the stomata, which controls the plant's water balance, and the development of root systems. ABA is among the
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Abscisic acid is a plant hormone that acts as a stress hormone.
Abscisic acid (ABA), a plant hormone, is involved in a variety of physiological activities, including seed germination, stress reactions, and leaf and stem growth. It can be transmitted to various parts of the plant and is synthesised in plant leaves, roots, and seeds.
ABA plays a role in seed dormancy, which delays germination until the environment is conducive to growth. ABA also contributes to the body's response to stress, such as drought, by closing stomata, lowering transpiration, and encouraging the accumulation of solutes in cells. It also influences the opening and closing of the stomata, which controls the plant's water balance, as well as the development of root systems.
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After the zygote has divided (through _________________), some of the cells become __________________ cells while others undergo cellular ____________________________ to produce __________________________ cells. Eventually the zygote will mature into an____________________, How does your eye color compare to the distribution in America? The purpose of gene expression is to produce _______________________________. _______________________ has codes for making specific proteins. Different _________________________ are active in different cells. Genes are also active at different ______________________. Gene expression lead to _________________________, _______________________, and _________________________
The zygote begins to divide shortly after sperm and egg come into contact (and divide).The stage of embryogenesis known as cleavage occurs when the zygote divides to generate a group of cells called the morula.
Now that it has left your fallopian tube, the blastocyst starts the long trek to your uterus. It develops into a blastocyst that is roughly one-fifth the size of a period in a few of days. A single-celled zygote that rapidly divides into a blastula is the starting point for the formation of multicellular creatures. The term "cleavage" refers to the quick, repeated cycles of cell division. The sperm and egg combine during fertilisation to generate a zygote in one of the fallopian tubes.
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The zygote begins to divide shortly after sperm and egg come into contact (and divide).The stage of embryogenesis known as cleavage occurs when the zygote divides to generate a group of cells called the morula.
Now that it has left your fallopian tube, the blastocyst starts the long trek to your uterus. It develops into a blastocyst that is roughly one-fifth the size of a period in a few of days..The stage of embryogenesis known as cleavage occurs when the zygote divides to generate a group of cells called the morula. A single-celled zygote that rapidly divides into a blastula is the starting point for the formation of multicellular creatures. The term "cleavage" refers to the quick, repeated cycles of cell division. The sperm and egg combine during fertilisation to generate a zygote in one of the fallopian tubes.
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similarity resulting from common ancestry is known as
Answer:
Similarity resulting from common ancestry is called homology .
One example of this could be pattern of arrangement of bones in limbs of cheetah, humans , whales and bats.
The structure gets modified according to different needs , like hands of human are used for holding objects , limbs of cheetah are used for running, bats use them for flying, etc .
This is a result of divergent evolution where structures get evolved to perform different functions according to the environment present there .
Which of the following is not a property of water
A. Water is vital to all life on earth
B. Water is the universal solvent
C. Water heats up and cools off really fast
D. Water helps regulate the temperature of the planet
Answer:
C: Water heats up and cools off really fast
Explanation:
Because water has a much higher heat capacity or specific heat, than sands, soils, or other materials, for a given amount of solar irradiation.
Answer:
c. water heats up and cools of really fast
explain how gel electrophoresis is used. why this method of dna fingerprinting can be considered such strong evidence to convict or clear a witness.
The DNA cells are stacked into a gel and set in an electrical area, which electrophoretically sorts the DNA chips into extra sets. These sets can be dyed with a radioactive color to make them evident to imaging systems.
Gel electrophoresis is utilized to make DNA fingerprints from crime locations and suspect examples. A match between tests recommends which suspect carried out the wrongdoing.
Gel electrophoresis is utilized to disconnect, distinguish, and describe properties of DNA sections in a wide range of circumstances and at various focuses during the cloning system. A limited quantity of DNA can be stacked into a well toward one side of a gel in a contraption that permits a current to be gone through the gel.
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Gel electrophoresis is used in DNA fingerprinting to distinguish between genetic material samples. Enzymes are used to break down the human DNA molecules into a collection of smaller, more manageable bits at specific characteristic places.
DNA fingerprinting is the process of comparing two DNA samples using gel electrophoresis, which involves running an electric charge across the DNA sample. DNA fragments are separated on a gel via a process called electrophoresis in DNA fingerprinting. With the exception of identical twins, this results in a pattern that can be examined and is particular to every person.
In gel electrophoresis, which involves the movement of a charged particle in an electrical current, a gel is used as an anticonvective medium or sieving medium. In addition to serving as a sieve medium and suppressing the thermal convection brought on by the application of the electric field, gels can also be employed to merely retain the finished separation so that a post-electrophoresis stain can be used.
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Your school's drama club is a staging a presentation of a play that takes place in a Classical Greek city. Your teacher has asked you to lead a team to design and build a set that incorporates the features of Classical art and architecture.
Write a narrative about you and your team creating the set and scenery for the school's production of this play.
Classical architecture, which is characterized by symmetry, columns, rectangular windows, and marble, to name a few, was developed in Ancient Greece and Rome.
What are Classical art and architecture?Architecture is the art and technique of designing and building, as opposed to skills linked to construction.
Especially from the fifth century BCE in Greece to the third century in Rome, the column and pediment were major elements of classical architecture.
Therefore, Greek architecture was primarily supported by a post-and-beam framework, with columns bearing the weight.
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if this was a human how many chromosomes could each of the resulting four embryos have, assuming that each cell is fertilized by another cell with the regular amount of chromosomes?
Each embryo has 46 chromosme, 23 pairs of chromosome from male parent and the female parent each.
if there are 4 embryos it means there are 92 pairs of chromosome, 184 chromosomes present where 92 is from each parents.
Human somatic cells have 46 chromosomes consisting of two sets of 22 homologous chromosomes and a pair of nonhomologous sex chromosomes ( 23 pair) total makes 23 pair of chromosome, 46 in number.
when fertilization takes place inside the womb of a female, it is always ensured that the embryo recieves equal amount of genetic material and chromosme, which is always 46 in number and 23 in pair.
when the zygote is formed, which is diploid,, the 46 chromosomes that a human cell contains exist in 23 pairs.
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Name two examples of how land can be used to support the growth of trees in your local community
Land can be used to support the growth of trees in your local community by providing place for root growth and nutrient absorption.
What is the role of trees in the community?Trees help communities and a strong economy and can supply numerous resources to the people that need them. While cities are obtained hotter, trees can reduce urban temperatures. They provide habitat and food for animals. eventually, trees are valuable green infrastructure communities to manage storm water. Don't misuse paper. We are all aware that we can help save trees from being cut down by using less paper.
Trees give us clean water to drink, air to breathe, shade, and food for humans, animals, and plants. They give habitats for numerous species of fauna and flora, fatwood for cooking trees and heat, materials for buildings and places of spiritual, cultural, and comical importance.
So we can conclude that Trees can bring people together as a landmark within and hearten pride in people within that community.
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Which of the following is a future consequence of concentrating solar energy on the environment?
Construction can disrupt ecosystems.
Weather does not affect energy output.
It generates greenhouse gases.
It needs lots of water for cleaning.
The greenhouse gases are produced is a future consequence of concentrating solar energy on the environment. In this case Option C is correct.
What function will solar power have in the future?
Future prospects for solar power are excellent. Solar energy will become more reliable, cost-effective, and efficient as technology develops. As a clean, abundant, renewable energy source, solar energy is a wonderful replacement for conventional energy sources.
Solar energy systems are becoming more and more cost-effective to produce as a result of technological advancements, enabling their use in more places.
Additionally, a wide range of uses for solar energy exist, from supplying homes and businesses with electricity to recharging automobiles and other forms of transportation.
We can anticipate that solar energy will play a bigger role in our future energy mix as solar technology continues to advance.
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describe the movement of sodium and potassium across the cell membrane and the creation of a membrane potential or voltage.
Sodium ions and potassium ions leak slightly during resting potential. Because sodium diffuses from the outside, where it is more concentrated, to the interior, potassium diffuses in the opposite direction, because it is more concentrated inside the neuron.
Protein channels and protein pumps transfer potassium and sodium across the cell membrane. Passive transport is facilitated by protein channels. They, like tunnels, allow materials to flow from a high concentration area to a low concentration area without expending energy.
As a result, after a few potassium ions have moved out of the cell, the cell will have an excess of negative charge, whilst the surrounding solution will have an excess of positive charge, resulting in a potential difference.
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A. Transcribe and translate the normal and sickle cell DNA.
b. Identify this as a point or frameshift mutation. Explain.
c. If the base sequence read GGG CTT CTT AAA instead, would this result in sickle cell
hemoglobin? Explain.
A. The beta-globin gene's typical DNA sequence, which codes for the beta component of haemoglobin. B. The sequence has a single base (GAG) inserted as a result of a point mutation, more precisely an insertion mutation.
AAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG G The additional GAG is introduced into the sickle cell DNA sequence, which is AAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG GAG. This causes the amino acid glutamic acid to convert to valine at the beta-globin subunit's sixth position. In (b), point mutations are alterations to a single DNA base that fall within the transitional or transversional categories (purine to purine or pyrimidine to pyrimidine) (purine to pyrimidine or vice versa). Insertions or deletions of one or more nucleotides result in frameshift mutations.
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. a(n) blankis a stretch of dna consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.target 1 of 7 2. theblankis/are arranged sequentially after the promoter.target 2 of 7 3. a(n) blankis a specific nucleotide sequence in dna that binds rna polymerase, positioning it to start transcribing rna at the appropriate place.target 3 of 7 4. a(n) blankcodes for a protein, such as
Operons are segments of DNA that often make up a full metabolic pathway and include an operator, a promoter, and genes for a linked group of proteins.
What characteristics characterize operon expression?After the promoter, the operon's genes are/are organised in a particular order.a nucleotide sequence in the DNA that is particular to the promoter and binds rna polymerase, positioning it to begin rna transcription at the right time.A regulatory gene produces a protein that regulates the transcription of another gene or set of genes, such as a repressor.What is an operon and what is its role?Operon, a genetic regulatory system prevalent in bacteria and their viruses and distinguished by the aggregation along the DNA of transcription factors functionally related proteins. This feature permits coordinated control of protein production in response to cellular requirements.
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A _____ is a stretch of dna consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.The ______ is/are arranged sequentially after the promoter.A ______ specific nucleotide sequence in dna that binds rna polymerase, positioning it to start transcribing rna at the appropriate place. a _______codes for a protein, such as a repressor, that controls the transcription of another gene or group of genes.Which would scientists predict might happen due to solar flares?
*
1 point
power grid operations will go offline
high-frequency radio waves used for radio communication will be blocked
electrical systems in satellites will fail
Answer:
It wouldn't harm us on Earth directly; our atmosphere protects our human bodies from such harm. But the upper layers of Earth's atmosphere – and Earth's magnetosphere – could be affected. A powerful solar flare has the potential to fry electronics and take down power grids around the globe
control center containing dna and cell instructions
The nucleus is the cell's command and control center. The nucleus houses as in almost all of the DNA in the cell, as well as the set of instructions for producing proteins and other important molecules.
There is no nucleus in prokaryotic cells, and the DNA is found in the cytoplasm. The nuclear envelope, which is made up of two membranes, protects the nucleus. So many of nuclear pores in the nuclear envelope permit material like molecules and proteins to transition in and out of the nucleus. Chromosomes contain the genetic material found within the nucleus. A nucleolus is a portion of the nucleus within which assembly of ribosomes starts in most nuclei.
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The Center The brain of the cell is the nucleus. Nearly all of the cell's DNA, along with the genetic instructions needed to create proteins and other crucial components, is found in the nucleus.
In terms of genomics, a nucleus is an essential cofactor within a cellular that is membrane-enclosed and houses the chromosomes. The nuclear membrane has a variety of pores that enable the selective passage of specific molecules (such peptides and nucleic acids) from and to the nucleus.
The nucleus' principal jobs include storing the cell's DNA, preserving its integrity, and assisting with transcription and replication. DNA is organised into chromosomes in the nucleus, which is located in the centre of the cell.
The double nuclear membrane (external and inner) that isolates the nucleus from cytoplasm, known as the nuclear envelope, envelops it. The endoplasmic reticulum and the outer membrane are one unit.
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besides the transcription factors that you have learned about, what other proteins may be involved with activating a gene to be transcribed? are there any tht may speed up transcription or even repress it?
besides the transcription factors coactivator proteins are involved with activating a gene to be transcribed. this protein speed up transcription.
An activator (a transcription factor) is a specific kind of transcriptional coregulator that binds to a gene or group of genes to speed up transcription. One of the DNA regulating sequences called an enhancer or a specific DNA promoter site are the only two places where the activator's DNA binding domain can engage. In order to boost gene expression, the activator-coactivator complex must bind to the promoter in order to speed up transcription by bringing in more general transcription machinery. Depending on the kind of cell and stage of development, activators and coactivators can be used to highly selective expression of some genes. The enzyme histone acetyltransferase (HAT) is active in several coactivators.
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A gene is activated to be transcribed by coactivator proteins in addition to transcription factors. Transcription is sped up by this protein.
A special type of transcriptional coregulator called an activator (also known as a transcription factor) attaches to a gene or set of genes to speed up transcription. The DNA binding domain of the activator can only attach to one of the DNA regulatory sequences known as an enhancer or a particular DNA promoter site.
The activator-coactivator complex must bind to the promoter in order to speed up transcription by bringing in more general transcription machinery and increase gene expression. Activators and coactivators can be used to extremely selectively express some genes, depending on the kind of cell and stage of development.
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Lysosomes break open during the process of digestion, releasing enzymes into the cytoplasm. Which statement may explain why the entire cell may not be digested?
1: the acidic environment of the cytoplasm destroys the enzymes
2: antibodies in the cytoplasm break down foreign enzymes.
3: The pH of the cytoplasm causes the enzymes to function less effectively
4: Enzymes can function only ind the location where they are synthesized
According to the research, the correct answer is Option 3. The pH of the cytoplasm causes the enzymes to function less effectively.
What is the cytoplasm?It is a structure where the various organelles of the cell are found and many of their molecular reactions occur that require their own pH regulating mechanisms because there is a tendency for acids to accumulate in it.
In this sense, within the lysosomes there are enzymes, which are used to carry out various metabolic processes in the cell cytoplasm and in some organelles, degrading substances.
Therefore, one of the elements involved in the regulation of intracellular pH is the cytoplasm where enzymes are substances that induce processes in which molecules are "destroyed", but the entire cell may not be digested given its pH, thus the correct option is 3.
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What material has a specific heat of .79?
What elements are not present in Earth's crust but are present in the Hydrosphere or Trophosphere?
What are the major components of the hydrosphere? _________ & __________
The materials that have a specific heat of 0.79 are liquid ammonia, the elements that are not present in the earth's crust but are present in the hydrosphere or troposphere are sulfur and chlorine and the major component of the hydrosphere is water and its dissolving materials.
What is the significance of the hydrosphere and the troposphere?The hydrosphere and the troposphere are two different layers of the earth, the troposphere is the layer that contains most of the gases, while the hydrosphere is the layer where the ocean, pond, etc. are present.
Hence, the materials that have a specific heat of 0.79 are liquid ammonia, the elements that are not present in the earth's crust but are present in the hydrosphere or troposphere are sulfur and chlorine and the major component of the hydrosphere is water and its dissolving materials.
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The reproduction of DNA during interphase begins with:
1).thickening of the chromatin
2).enzymes separating the DNA molecules
3).enzymes producing a new DNA molecule
4).pairs of bases lining up
Answer:
2).enzymes separating the DNA molecules
Explanation:
a resting neuron is an unstimulated neuron that is not presently generating an action potential. the resting membrane potential is the separation of the relative positive and negative charges across the membrane of a cell at rest.
A non signaling neuron has a voltage across its membrane that is called the resting membrane potential or simply the resting potential.
There are basically two factors that influence the resting membrane potential. One is differences in the concentration of the sodium and potassium ions across the membrane that is electrochemical gradient and second is the sodium and potassium ions permeability through the membrane.
During resting potential ions move down their gradients through the channels and result in the separation of charges which creates the resting potential. Also the membrane is more permeable to K+ ions hence resting potential will be close to the equilibrium potential of K+ ions.
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The resting membrane potential, or simply the resting potential, is the voltage across the membrane of a non-signaling neuron. This is how a cell's membrane normally behaves while it is "resting."
The resting membrane potential is primarily influenced by two variables. One is the electrochemical gradient in the concentration of the sodium and potassium ions across the membrane, and the other is the permeability of the sodium and potassium ions through the membrane. Ions travel through the channels as the resting potential develops, causing the separation of charges as they go down their gradients. The resting potential will be nearer to the K+ ion equilibrium potential since the membrane is also more permeable to K+ ions. The change in electrical potential across a biological membrane when the membrane is not actively experiencing a depolarization or repolarization event is known as the resting membrane potential (RMP).
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island biogeography is a topic that is frequently discussed in conservation biology. how can the theory of island biogeography be related to conservation biology? consider the amazon rain forest when forming your answer.
Islands are a particular problem in conservation biology because to their very high extinction rates.
Islands are stretches of land with water on three sides. Islands can be oceanic, which means they are situated on the oceanic crust and often far from a main continental mainland, or continental, which means they are situated on a continental shelf and were historically next to a main continental landmass. Oceanic islands are also typically tiny in size and produced by volcanoes.
The geographical investigation of the diversity of plant and animal species on islands is known as island biogeography. Species found on land, in freshwater habitats, and in the sea are all investigated in island biogeography. Insular biogeography is another term for island biogeography. According to the island biogeography theory, the number of species on an island is correlated with its land area and degree of isolation.
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Anjelica is becoming increasingly hungry during a long late-afternoon class. Certain cells in her hypothalamus are probably becoming especially active. True or false
True. Nerve cells located in the hypothalamus are what cause the feeling of hunger when they are active. In order to do this, they produce the hunger-inducing proteins neuropeptide Y (NPY) and agouti-related peptide (AGRP).
Another group of nerves that effectively suppresses hunger is located quite close to these nerve cells. The brain's reaction to dehydration is not limited to thirst. The hypothalamus boosts the production of the antidiuretic hormone vasopressin, which is released by the pituitary gland and moves to the kidneys when the body is dehydrated. The hypothalamus in your brain, your blood sugar (glucose) level, how empty your stomach and intestines are, and several hormone levels in your body all play a role in regulating your hunger.
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True Anjelica is becoming increasingly hungry during a long late-afternoon class. Certain cells in her hypothalamus are probably becoming especially active.
The hypothalamus is a small but complex brain structure that performs an important function in homeostasis and hormone regulation. Anatomically, it's far placed among the two cerebral hemispheres and is a part of the diencephalon, a mind shape that also includes the thalamus.
The thyrotropin-liberating hormone (TRH), gonadotropin-freeing hormone (GnRH), increase hormone-liberating hormone (GHRH), corticotropin-releasing hormone (CRH), somatostatin, and dopamine are released from the hypothalamus into the blood and tour to the anterior pituitary.
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Identify the components of this experiment by dragging the labels into the appropriate bins. ResetHelp Factor being tested (independent variable) Factors controlled (kept consistent) Factors to be mesured (dependent variables)
Factor being tested in the experiment, or the independent variable is diet, factor controlled is age of mice, and factor to be measured is weight gain.
We can identify the components of the experiment and label them as follows:
Diet is being tested as an independent variable.Controlled (consistent) factors included: -Mice age -Initial composition of the microbial community.Factors to be measured (dependent variables): -Change in body fat -Weight gain -Final microbial community composition.The scientists purposefully varied only one factor (called the independent variable) in this experiment: diet. They standardised, or controlled, all other variables that might differ between the two groups of mice, such as age and the initial microbial community composition (both groups of mice received microbes from the same donor mouse). As a result, any differences in weight gain, body fat, or microbial community between the two groups can be attributed to diet.
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Complete question is:
In one experiment, scientists raised mice in germ-free conditions, so the mice lacked intestinal microbes. The mice were fed a low-fat diet rich in the complex plant polysaccharides, such as cellulose, that are often called fiber.
When the mice were 12 weeks old, the scientists transplanted the microbial community from the intestine of a single "donor" mouse into all of the germ-free mice. Then they divided the mice randomly into two groups and fed each group a different diet.
Group 1 (the control group) continued to eat a low-fat, high-fiber diet.
Group 2 (the experimental group) ate a high-fat, high-sugar diet.
Identify the components of this experiment by dragging the labels into the appropriate bins.
The diet is the factor being tested in the experiment, or the independent variable, the age of the mice is controlled, and the factor to be measured is weight gain.
We can identify and label the experiment's components as follows:
Diet is being used as an independent variable in this study.
Controlled (consistent) factors included the following: -Mice age -Initial microbial community composition.
The following factors (dependent variables) will be measured: -Change in body fat -Weight gain -Composition of the final microbial community.
In this experiment, the scientists purposefully varied only one factor (referred to as the independent variable): diet.
They standardised, or controlled, all other variables that could differ between the two groups of mice, such as age and the composition of the initial microbial community (both groups of mice received microbes from the same donor mouse). As a result, any differences between the two groups in weight gain, body fat, or microbial community can be attributed to diet.
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Complete question is:
In one experiment, scientists raised mice in germ-free conditions, so the mice lacked intestinal microbes. The mice were fed a low-fat diet rich in the complex plant polysaccharides, such as cellulose, that are often called fiber. When the mice were 12 weeks old, the scientists transplanted the microbial community from the intestine of a single "donor" mouse into all of the germ-free mice. Then they divided the mice randomly into two groups and fed each group a different diet.
Group 1 (the control group) continued to eat a low-fat, high-fiber diet.
Group 2 (the experimental group) ate a high-fat, high-sugar diet.Identify the components of this experiment by dragging the labels into the appropriate bins.
what role do voltage-gated potassium channels play in the action potential? what role do voltage-gated potassium channels play in the action potential? voltage-gated potassium channels restore negative membrane potential after the spike. voltage-gated potassium channels interfere with sodium conductance. voltage-gated potassium channels help depolarize the membrane toward the threshold for an action potential. voltage-gated potassium channels maintain the resting membrane potential.
Answer:
Voltage-gated potassium channels regulate the movement of potassium ions across cell membranes. Activation leads to an increase in conductance and the termination of action potentials, hyperpolarization, and a reduction in excitability.
Explanation:
What does stimulation have to do with evolution
Stimulation have to play very important role in revolutionary development by providing an environment that encourage organisms to grow and evolve. Stimulation refers to the act of providing stimuli to an organism, which can come in many forms, such as physical, emotional, and intellectual. Physical stimulation encourages growth and development by providing an organism with activity and resources to adapt to its environment. Emotional stimulation encourages the organism to explore, try new things and form bond with others. Intellectual stimulation encourages the organism to think, reason and create. All of these forms of stimulation are necessary for organisms to survive and thrive in changing environments. Ultimately , these forms of stimulation help an organism to grow, learn, and evolve. To learn more about stimulation https://brainly.com/question/30375477