This makes a root tip an excellent tissue to study the stages of cell division, the type of division going on here is mitosis, which have various stages like prophase, metaphase, telophase and anaphase.
Mitosis is an equational division of cell which occurs in actively dividing part of the cells like root tips.
The stages of mitosis is it starts from prophase, where chromosmes are prepared to go for division, then it goes to metaphase where all the chromosomes align in the middle region/metaphasic plate, then it goes to another stage known as anaphase where spindle fibres are formed and they are attatch to kinetochores of chromosomes and moves to opposite directions. The last is telophase where all the membrane appears and chromosome are divided equally between the 2 cells.
The stages of mitosis can be seen by staining the root tip with acetocarmine and heat fixing it.
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Consider the steps involved in an experiment that uses the scientific method. Arrange the six given steps in the order in which they occur. One of the steps will not be used.
-Analyze the data collected in the experiment.
-Construct a hypothesis that might explain the observations about the natural phenomenon.
-Choose the data that are most likely to support the hypothesis and ignore the rest of the data.
-After observing a natural phenomenon, develop a question based on the observations.
-Conduct the experiment and collect the resulting data.
-Design an experiment that tests the hypothesis.
-Share the results and conclusions of the experiment.
Answer:-Analyze the data collected in the experiment. -Construct a hypothesis that might explain the observations about the natural phenomenon.
Explanation:
The steps of the scientific method in the order in which they occur are as follows:
After observing a natural phenomenon, develop a question based on the observationsConstruct a hypothesis that might explain the observations about the natural phenomenonDesign an experiment that tests the hypothesisConduct the experiment and collect the resulting dataAnalyze the data collected in the experimentShare the results and conclusions of the experimentWhat is the scientific method?Scientific method is the method of discovering knowledge about the natural world based in making falsifiable predictions (hypotheses), testing them empirically, and developing theories that match known data from repeatable physical experimentation.
The scientific method is the standard method of making scientific claims about a subject and it includes the following steps:
Making a question based on observationsConstructing hypothesisTesting hypothesis via experimentationAnalyze the dataShare and conclude findingsBased on the above, the correct order of the steps in scientific method is given in the main answer.
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throughout photosynthesis, energy is transferred from light to several molecules with increas- ingly higher potential energy. use the words below to summarize the order in which the energy fl ow occurs.
In photosynthesis, energy is carried by various small and large molecules from one part of plant body to other part.
A substance response filled by the energy of the sun, photosynthesis changes over carbon dioxide, water and daylight into glucose and oxygen. Autotrophs, life forms like plants that make their own food, use photosynthesis to fuel development, proliferation and fix of their cells. Photosynthesis happens in two phases: the light-reliant responses and the light autonomous responses.
Since plants can't utilize the energy from the sun straightforwardly to create glucose, daylight is changed over into synthetic energy through the development of adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate hydrogen (NADPH). During the light-reliant responses of photosynthesis, ATP and NADPH are made; these are energy-conveying particles. The synthetic energy put away in ATP and NADPH is then utilized during the light-free phase of photosynthesis, which is otherwise called the Calvin cycle, to create starches.
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The diagram summarizes the steps of photosynthesis inside chloroplasts.
Light
Electron
Photosystems
Electron transport chains
ADP+P
NADP+ + H+
ATP synthase
ATP
NADPH
ADP+P
ATP
CO
CO₂
OCO
Stroma
Calvin
cycle
ATP
Sugar
ek
ADP + P
NADPH
NADP+ + H
OCO
A. An increase in the amount of O₂ that the cell can absorb
B. A decrease in the formation of chlorophyll in thylakoids
C. An increase in the amount of CO₂ that the cell can absorb
D. A decrease in the formation of ATP by the light reactions
An excess of carbon dioxide (CO₂) in a chloroplast makes conditions there
more acidic. Such a change can cause protein molecules in cells to change
shape and stop functioning. Which change is most likely to happen if a
chloroplast contains too much CO₂?
D. A decrease in the formation of ATP by the light reactions.
Which change is most likely to happen if a chloroplast contains too much CO₂?If a chloroplast contains too much carbon dioxide (CO₂), the pH of the chloroplast will drop, making the environment more acidic. This acidic environment can cause a change in the shape of some protein molecules, which can lead to a decrease in the activity of enzymes. The decrease in enzyme activity can lead to a decrease in overall photosynthesis. As photosynthesis is the process in which plants synthesize their own food, this decrease in photosynthesis can be detrimental to the plant.In addition to a decrease in photosynthesis, an increase in CO₂ can also cause a decrease in the formation of chlorophyll. Chlorophyll is the pigment in plants that absorbs light and helps with photosynthesis. A decrease in chlorophyll can lead to a decrease in the amount of light that is absorbed and a decrease in the amount of energy that is produced. Furthermore, an increase in CO₂ can also lead to a decrease in the amount of oxygen that is produced, as oxygen is a byproduct of photosynthesis.Overall, an increase in CO₂ in a chloroplast can cause the protein molecules to change shape and the enzyme activity to decrease, leading to a decrease in photosynthesis, a decrease in the formation of chlorophyll, and a decrease in the production of oxygen.To learn more about Denaturation of proteins in the chloroplasts refer to:
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body planes are answer surfaces along which the body or a structure is cut for anatomical or pathological study.TrueFalse
True. Body planes are the cutting surfaces used to make cuts in the body or even a structure for anatomical as well as pathological research.
Body planes are fictitious geometric planes that are used to segment the body. They are frequently used to define the position or angular orientation of body structures in both animal and human anatomy. The Sagittal Plane (also known as the Lateral Plane) is a vertical plane that runs from front to back and divides the body into its right and left sides. The typical anatomical stance for a human is standing with their feet together again and pointing forward, without any long bones being crossed from the observer's point of view. (Sagittal, Coronal, Transverse) Three anatomical planes allow for the slicing of tissues and/or the taking of photographs.
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Play disposable diapers, made of both synthetic or natural polymers, which of the following is a supporting detail useful to promote the use of disposable diapers?
The following which is a supporting detail useful to promote the use of disposable diapers is that they are super absorbent so babies may toilet train later and is therefore denoted as option E.
What is a Diaper?
This is also known as a nappy and it is a type of underwear mostly used by babies that allows the wearer to urinate or defecate without using a toilet.
This is because it contains polyacrylate super absorbing powder which adequately absorbs or contains waste products to prevent soiling of outer clothing or the external environment which is therefore the reason why option E was chosen as the correct choice
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Below are ingredients found in an energy blend of an energy drink. Which of these ingredients aids in digestion of some minerals of the body?
A. Taurine
B. Glucuronic acid
C. Phenylalanine
D. Malic acid
E. Tyrosine
Taurine aid in the digestion of some minerals in the body. Therefore the correct answer is option A.
The human body naturally produces taurine, an amino acid. The form seen in power drinks is produced, though.
It aids in controlling energy levels, muscular contractions, and heartbeat. In most cases, the body produces enough taurine to avoid the need for supplements.
It is hypothesized, but not shown, that the body does not produce enough during "stressful situations" like disease, physical activity, or injury, and supplements can assist.
The neurotransmitter taurine may have a slight inhibitory effect. According to some research, it supports excitable brain states, which may help people work more effectively when other stimulants are present in higher doses.
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Genetic drift in a population affectsA scientist is trying to determine the relationship between clams, snails, and squid. When she generates a molecular clock, she is surprised to see that clams and squid are more closely related than clams and snails. Which did the molecular clock data show?
Clams and squid have been evolving separately for a longer time than clams and snails.
Clams and squid have been evolving separately for a shorter time than clams and snails.
Clams and snails have more in common genetically than clams and squid.
Clams and snails are more similar in related structures than clams and squids. the gene pool in which of the following ways?
For a shorter period of time than clams and snails, squid and clams have undergone independent evolution. According to the molecular clock hypothesis, the evolution of DNA and protein sequences happens at a rate that is essentially consistent over time and among different kinds of organisms.
What is Molecular Clock?For instance, the gene that codes for alpha-globin, a protein that is a part of haemoglobin, suffers base alterations at a pace of. 56 modifications per base pair every billion years1. The gene could serve as a molecular clock if this pace is consistent.
With the help of this knowledge, evolution biologists can infer how species develop and determine the exact moment on the evolution history at which two species diverged. A molecular clock counts time from random changes (mutations) in molecules, as opposed to a wristwatch, which uses regular changes (ticks) to tell the time.
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identify at least three ways in which oxygen improved the opportunity for higher life forms to develop on the earth
The increased creation of oxygen threw off the balance of Earth's original atmosphere. Because oxygen was hazardous to many anaerobic species, many anaerobic forms of bacteria were eliminated, creating biological "niches."
According to new research published in BMC Evolutionary Biology, oxygen had an important role in the evolution of complex species. According to the findings, the complexity of living forms developed earlier than previously assumed, and in tandem with the availability of oxygen as an energy source.
To survive, most living things require oxygen. Oxygen aids organisms in their growth, reproduction, and the conversion of food into energy. Humans obtain the oxygen they require by breathing into their lungs through their nose and mouth.
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........................help
incase u can't see the question or answers
question: according to this diagram, at which point will the strongest winds be located
a: point 1
b: point 2
c: point 3
d: point 4
breaks down food both mechanically and chemically breaks down food both mechanically and chemically drop zone empty. removes waste products from the circulatory system removes waste products from the circulatory system drop zone empty. detects sensations, controls physiological and intellectual functions detects sensations, controls physiological and intellectual functions drop zone empty. removes foreign substances from the blood and aids in fat absorption removes foreign substances from the blood and aids in fat absorption drop zone empty. transports nutrients, waste, gases, and hormones throughout the body transports nutrients, waste, gases, and hormones throughout the body drop zone empty. regulates metabolism through the action of hormones
Digestive system mechanically and enzymatically breaks down food into substances for absorption into the bloodstream. The food contains three macronutrients that require digestion before they can be absorbed: fats, carbohydrates, and proteins.
Excretory system removes waste products from the circulatory system. A pair of kidneys, a pair of ureters, a bladder of urine, and the urethra are organs of the human excretory system.
Nervous system detects sensations, controls physiological and intellectual functions.
The lymphatic system removes foreign substances from the blood and aids in fat absorption. Removes waste products produced by cells. Fights infections. Absorbs fats and fat-soluble vitamins from the digestive system and transports these into the bloodstream.
The circulatory system transports nutrients, waste, gases, and hormones throughout the body .
The endocrine system regulates metabolism through the action of hormones. The endocrine system, made up of all the body's different hormones, regulates all biological processes in the body .
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Is the size of an organism’s genome related to its complexity?
Considering the animals compared in Figure 5-08, what do you find most surprising about the relative numbers of base pairs (rungs on the DNA “ladder”) among the fruit fly, salamander and human? What assumptions do you hold about these three species that may relate to your surprise? Bonus: what is a probable reason for the large amount of DNA found in an Amoeba?
The organism’s genome is not related to its complexity.
How to explain the complexity?The size of an organism's genome is not necessarily related to its complexity. Some organisms, such as certain species of ferns, have very large genomes (hundreds of billions of base pairs) while others, such as certain bacteria, have very small genomes (less than a million base pairs).
Additionally, some organisms with relatively small genomes, such as humans, are considered to be highly complex, while others with large genomes, such as certain species of algae, are considered to be relatively simple. The relationship between genome size and complexity is complex and not well understood.
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I need help with the names of this organism
i think this is it im only 6th grade im helping everyone else so they help me with my one question but its not working
answer i think
The organisms in the kingdom Animalia include mammals, birds, reptiles, amphibians, fish, arthropods (insects, spiders, crustaceans, etc.), mollusks (snails, clams, squid, etc.), echinoderms (starfish, sea urchins, etc.), and annelids (earthworms, leeches, etc.).
When two aqueous solutions that differ in solute concentration are placed on either side of a semipermeable membrane and osmosis is allowed to take place, the water will exhibit a net movement to the side with lower free water concentration. exhibit a net movement to the side with higher free water concentration. exhibit a net movement to the side with lower solute concentration. exhibit an equal movement in both directions across the membrane.
When two aqueous solutions that differ in solute concentration are placed on either side of a semipermeable membrane and osmosis is allowed to take place, the water will
exhibit a net movement to the side with lower free water concentration.
exhibit a net movement to the side with higher free water concentration.
exhibit a net movement to the side with lower solute concentration.
exhibit an equal movement in both directions across the membrane.
When two aqueous solutions that differ in solute concentration are placed on either side of a semipermeable membrane and osmosis is allowed to take place, the water will exhibit a net movement to the side with lower free water concentration.
Osmosis is the transfer of water molecules through the partly permeable membrane of a cell from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules. Osmosis assists in controlling the movement of water into and out of cells, which is essential for their proper operation. Water enters and exits cells of all living things according to the osmosis principle. Animal cells' size and form are kept stable because to it. Osmosis keeps the protoplasm volume constant. Osmosis is used by intestinal cells to absorb water.
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assuming independent assortment, an individual of genotype ssyyaa would produce gametes of genotypes (in their correct proportions) . see section 14.3
Based on independent assortment, an individual of genotype SsYyAa would produce gametes of genotypes: 1/8 SYA, 1/8 SYa, 1/8 SyA, 1/8 Sya, 1/8 sYA, 1/8 sYa, 1/8 syA, and 1/8 sya.
The Principle of Independent Аssortment describes how different genes independently sepаrаte from one аnother when reproductive cells develop. Independent аssortment of genes аnd their corresponding trаits wаs first observed by Gregor Mendel in 1865 during his studies of genetics in peа plаnts.
Аccording to the lаw of independent аssortment, the аlleles of two more genes get sorted into gаmetes independent of eаch other. The аllele received for one gene does not influence the аllele received for аnother gene.
Thus, an individual of genotype, SsYyAa would produce 8 gametes of genotypes. There are 1/8 SYA, 1/8 SYa, 1/8 SyA, 1/8 Sya, 1/8 sYA, 1/8 sYa, 1/8 syA, and 1/8 sya, becаuse of independent аssortment, аll possible аllele combinаtions would occur in equаl proportions.
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an experiment can always be improved by-
a: having more trials
b: conducting it outside
c: using more than one independent variable
d: getting rid of all constants
how does a Temperature & Phase Change relate to a human and to the environment.
The human body is able to regulate its internal temperature through a process known as thermoregulation.
What is thermoregulation?
This process involves the release of heat through mechanisms such as sweating and the constriction or dilation of blood vessels. A change in external temperatures, such as exposure to extreme heat or cold, can disrupt this process and lead to conditions such as hypothermia or hyperthermia.
Phase change includes the melting of ice or the boiling of water. it can also have an impact on the environment. For example, the melting of glaciers and ice caps due to rising temperatures can contribute to sea level rise, which can have a variety of negative effects on coastal communities and ecosystems. Similarly, the boiling of water can lead to the formation of steam, which can be harnessed as a source of energy but also can cause severe damage in case of eruption or explosion.
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Should extreme snowfall over the course of a session cast doubt on the theory of global climate change
which of the following systems are directly responsible for the removal of wastes from the human body? select all that apply.
C) 1 and 4, which are Digestive system and Respiratory system primarily responsible for the removal of wastes from the human body.
Which organ cleanses waste through digestion?The large intestine's primary job as an excretory organ is to discharge solid wastes that are still available after food has been digested and water has been recovered from indigestible material in food waste. Wastes are also accumulated in the large intestine from all throughout the body.
What function does the respiratory system play in removing unnecessary gases?Through the bloodstream, oxygen is transported throughout your body from the lungs. The waste gas carbon dioxide is exchanged for oxygen at every cell in your body. This waste gas is then carried by your bloodstream back to your lungs, where it is exhaled after being evacuated from the bloodstream.
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which of the following systems are directly responsible for the removal of wastes from the human body? select all that apply.
Digestive systemMuscular systemNervous systemRespiratory systemA) 1 and 2
B) 1 and 3
C) 1 and 4
D) 1, 2, 3, and 4
If a dish of chicken salad got contaminated with 80 Salmonella cells at 9am and Salmonella has a generation time of 30 minutes. How many Salmonella cells will be in the chicken salad when someone has a midnight snack at midnight?
what is the equation and answer?
30 * 80 = 540
by midnight the chicken salad will develop 540 cells
Tissue engineering is the ability to grow cells in a laboratory. These cells are collected
from an animal, a donor organ, or a patient's body and grown in liquid nutrients that allow
them to divide and multiply. This science explores the possibility of replacing or repairing
human body parts. How is the term engineering as used in this process applied?
By the use of:
A. science and mathematics to produce a material
B. history, mathematics, and biology to produce a material
C. biology, medicine, and engineering to produce a material
D. mathematics and engineering to produce a material
E. chemistry, mathematics, and engineering to produce a material.
Answer:
C. biology, medicine, and engineering to produce a material is the correct answer. Tissue engineering uses the principles and techniques of engineering in combination with knowledge of biology and medicine to design and create replacement or repaired tissue for the human body.
Physical science pls help fast rapidly:
There is no motion observed.
The sum of the forces or the net force is equal to zero.
The net force = sum of force of two blue ball - sum of force of one medium red ball.
The forces are balanced as there is no motion observed.
What is a net force?The net force is a single force that cancels out the original forces' influence on the motion of the particle.
The vector sum of the forces exerted on a particle or object is known as the net force.
The net force is derived by summing the oppositely acting forces by simple algebraic addition or by vector addition for forces acting at an angle to each other.
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sort the statements into the appropriate bin depending on whether or not they correctly describe some aspect of substrate-level phosphorylation in glycolysis.
The following is correct statements describe some aspect of substrate-level phosphorylation in glycolysis:
A molecule derived from the breakdown of glucose is one of the substrates.The reaction requires the presence of an enzyme.Before ATP can form, a bond between an organic molecule and phosphate must be broken.The statements that are incorrect:
The phosphate group that is added to ADP to produce ATP is derived from free inorganic phosphate ions.To produce ATP, the enzymes involved in ATP synthesis must be attached to a membrane.This route involves phosphorylation (the addition of a phosphate group to glucose) (substrate). This transformation occurs in two steps: the first, or preparatory phase, by the enzyme Hexokinase, and the second, where Fructose-1-phosphate is converted to Fructose-1, 6-bisphosphate.
The question is incomplete, it should be:
Sort the statements into the appropriate bin depending on whether or not they correctly describe some aspect of substrate-level phosphorylation in glycolysis.
-One of the substrates is a molecule derived from the breakdown of glucose.
-An enzyme is required in order for the reaction to occur.
-A bond must be broken between an organic molecule and phosphate before ATP can form.
-The phosphate group added to ADP to make ATP comes from free inorganic phosphate ions.
-The enzymes involved in ATP synthesis must be attached to a membrane to produce ATP
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What percentage of the children will be non-tasters of PTC
Answer:
According to a study by the University of Florida, approximately 25% of children are non-tasters of PTC. This means that 25% of children have a genetic mutation that prevents them from tasting the bitter compound found in some foods.
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The addition of oxygen to RuBP by rubisco to form a two-carbon product that is then broken down by the cell to carbon dioxide and water defines
Photorespiration is defined as the addition of oxygen to RuBP by rubisco to form a two-carbon product, which is then broken down by the cell to carbon dioxide and water.
The evolution of CO2 during photosynthesis is known as photorespiration. It occurs as a result of rubisco's ability to function as either a carboxylase (incorporating CO2) or an oxygenase (incorporating O2). Rubisco functions primarily as a carboxylase in the presence of relatively high CO2 levels.
Photorespiration is the process by which molecular oxygen (O2) is taken up by light and carbon dioxide (CO2) is released from organic compounds. The gas exchange is similar to respiration and works in the opposite direction of photosynthesis, where CO2 is fixed and O2 is released.
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If one of the products is added to a system initially at equilibrium, then the reaction will proceed in the ______ direction in order to decrease
When a system is initially at equilibrium and one of the products is added, the reaction will move in the opposite direction to slow down.
What happens in an equilibrium system when a product is added?
When a product is added to an equilibrium system, its concentration rises, shifting the equilibrium to the right. The product concentration will continue to rise until the reaction reaches a new equilibrium as a result of the reaction moving in the direction that produces the product as a result.
Depending on the relative concentrations of reactants and products at the time of addition, the reaction may also shift in the opposite direction. The relative concentrations will determine the new equilibrium point.
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A plant stem's two main functions are to support the leaves and to transport materials
between roots and leaves. As a stem develops, it possesses three types of permanent
tissues: surface tissue, ground tissue, and vascular tissue. The surface and ground
tissues support and give structure to the plant. The vascular tissues are the transport
systems of the plant. The vascular tissues usually exist in one of three patterns and are
known as the phloem and xylem.
Both the xylem and phloem are made up of several different types of cells that make up
transport tubes for needed nutrients. In general, xylem nutrients (sap) travel from the roots
to the rest of the plant. Phloem sap is derived from photosynthesizing leaves and from
there is carried throughout the plant.
What would we be able to study by injecting a nutrient dye into the root of a plant?
OA. xylem sap transport
B. phloem sap transport
C. all vascular tissues
D. total plant photosynthesis
OE. pith and cortex cells
which of the following may occur at the site of the synapse to prevent constant stimulation or inhibition of the receiving neurons?
which of the following may occur at the site of the synapse to prevent constant stimulation or inhibition of the receiving neurons? A. Synaptic Cleft B. Receptor Desensitization C. Reuptake D. All can apply
Option D, The synaptic cleft, the space between the presynaptic and postsynaptic neurons, contains enzymes that rapidly degrade neurotransmitters, reducing their concentration and thus limiting their effect.
At the synapse, there are several mechanisms to prevent constant stimulation or inhibition of the receiving neurons: Synaptic Cleft: The synaptic cleft, the space between the presynaptic and postsynaptic neurons, contains enzymes that rapidly degrade neurotransmitters, reducing their concentration and thus limiting their effect. Receptor Desensitization: The postsynaptic neuron may also have receptors with rapid desensitization, which reduces their responsiveness to continued stimulation. This occurs through changes in the receptor's shape or location, making it less likely to bind to neurotransmitters and produce a response. Reuptake: Another mechanism is reuptake, where the presynaptic neuron reabsorbs neurotransmitters back into its terminal, reducing the amount available in the synaptic cleft. Inhibitory Feedback: Inhibitory neurons can also provide negative feedback to the presynaptic neuron, reducing the release of neurotransmitters and the stimulation of the postsynaptic neuron. Spatial and Temporal Summation: The postsynaptic neuron integrates signals from multiple synapses over time and space. If the stimulation is not sustained, the postsynaptic neuron's response will decay.
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the peptide bond group of answer choices is formed by elimination of water between two amino groups in an amindo acid limits the possible orientations of the peptide backbone in a protein has acidic and basic characteristics all of these g
the peptide bond limits the possible orientations of the peptide backbone in a protein. it is a dehydration synthesis reaction.
A peptide bond in organic chemistry is a sort of covalent chemical bond called an amide that connects two alpha-amino acids in a row starting from C1 (carbon number one) of one and N2 (nitrogen number two) of another, along a peptide or protein chain. It can also be referred to as a "eupeptide bond" to differentiate it from a "isopeptide bond," which is an additional kind of amide bond that connects two amino acids. Condensation reaction occurs when two amino acids combine to create a dipeptide through a peptide link. Two amino acids condense in this manner when their non-side chain (C1) carboxylic acid moiety approaches their non-side chain (N2) amino moiety.
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Option 2 is Correct. The various orientations of the peptide backbone of a protein are restricted by the peptide bond.
In organic chemistry, an amide chemical bond known as a peptide bond joins two alpha-amino acids in a row beginning with C1 (carbon number one) of one and N2 (nitrogen number two) of another, along a peptide or protein chain. To distinguish it from an extra type of amide bond that joins two amino acids, known as a "isopeptide bond," it can alternatively be referred to as a "eupeptide bond."
When two amino acids unite to form a dipeptide through a peptide link, condensation process takes place. When the non-side chain (C1) carboxylic moiety of two amino acids approaches the non-side chain (N2) amino moiety, they condense in this way.
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Correct Question:
The peptide bond group of answer choices
1. is formed by elimination of water between two amino groups in an amino acid
2. limits the possible orientations of the peptide backbone in a protein
3. has acidic and basic characteristics
4. all of these
Which of the following statements about good experiments is TRUE?
- A good experiment must include all possible causal factors in one experimental group.
- A good experiment should have at least two groups: one control group and one experimental group.
- A good experiment should include a potentially confounding factor in at least one group.
- A good experiment should only include replication if the hypothesis has never been tested before
the following statements about good experiments is TRUE
A good experiment should have at least two groups: one control group and one experimental group.
An experimental group is a group of subjects in an experiment that is exposed to a manipulation of an independent variable, also known as a treatment. The experimental group is used as a point of comparison to a control group, which is not exposed to the manipulation of the independent variable. The goal of the experimental group is to determine whether the manipulation of the independent variable has an effect on the dependent variable, which is the outcome being measured. The experimental group allows researchers to establish cause-and-effect relationships between the independent and dependent variables, as the manipulation of the independent variable can be linked to changes in the dependent variable. The experimental group is an essential aspect of experimental design in scientific research, as it allows researchers to test hypotheses, evaluate theories, and draw conclusions about the phenomenon being studied.
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count the number of cells in each slide
In the counting region, center a microscope with a 5–10x objective on the gridlines.
What is meant by cells?The smallest unit in biology that is capable of independent living and that comprises all living things as well as the body's tissues. The cell membrane, nucleus, and cytoplasm make up a cell's three basic structural components. The cell membrane, which encloses the cell, regulates the molecules that enter and exit the cell.
A hemocytometer should be used with cell concentrations of no more than 106 cells per milliliter. The best cell concentration for an Improved Neubauer chamber is between 2.5 × 105 to 2.5 × 106 cells/ml. You might therefore need to concentrate or dilute your sample before counting.
Focus a microscope with a 5–10x objective on the grid lines of the counting region. The cells in a single set of 16 squares (1 mm square; blue area) should be counted. Establish a rule for counting. Take the average cell count from each of the 16 sets of corner squares to determine how many cells per milliliter there are.
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