Answer:
In passive transport, molecules move with the concentraction gradient.
Explanation:
If molecules moved against it would be active transport.
Passive transportation has been defined as the mode of molecule movement across the semi-permeable membrane. "In passive transport, molecules move down the concentration gradient."
What is passive transport?Passive transport has been the mode of movement of the ions and molecules from the exterior and interior of the cell through the plasma membrane. This mode of transportation has been characterized by the movement of the ions from the region of a higher electrochemical gradient.
The ions tend to move towards the region that lacks the electrochemical gradient, hence it is a movement in the direction of the lower concentration. The solute particles do not external source of energy to drive the movement from higher concentration areas.
It is a type of diffusion that uses the law of Thermodynamics to move the ions up and down the cell concentration. The movement of the oxygen gas in the body cells is an example of passive transportation.
Therefore, the ions move down the concentration gradient in the passive transport.
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Which organelle that plays a central role in the transport of new molecules from inside to outside the cell?
Answer:
The Golgi apparatus plays a central role in molecular transport after biosynthesis.
Explanation:
Transcription occurs in the nucleus during protein synthesis, followed by translation inside ribosomes. Then, new molecules join the endoplasmic reticulum to be folded and modified. In the Golgi, they are tagged and separated into lysosomes for export outside the cell.
The Golgi system comprises of several regions known as cisternae; they act as independent microenvironments where products requiring their own unique conditions are converted into new, stable biomolecules.
Binding of ________________ to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.
Answer:
Binding of ACh (acetylcholine) to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.
Explanation:
It allows acetylcholine to be released into this synapse when an action potential hits a neuromuscular junction. Acetylcholine attaches to the nicotinic receptors localized on the post-synaptic membrane of the muscle fibre's motor end plate, a specialized region.
Hence , the answer is ACh (acetylcholine) .
There are four mechanisms that can cause changes in the frequencies of genes in populations: mutation, migration, genetic drift, and natural selection. All four are mechanisms of evolutionary change. What is genetic drift?
A) In a population, it is the changes in allelic frequencies of a gene that are due to chance.
B) A random error/change in the DNA sequence. These may be inherited or occur in cells during the lifetime of the organism
C) Also known as gene flow. It is any movement of individuals and/or the genetic material they carry, from one population to another.
D) There is variation in any population differential reproduction occurs and over time a more advantageous trait exists in the population.
Answer: D
Explanation: i did it on usa test prep
Answer:D
Explanation:
Which describes the particle or particles that are in the nucleus of an
atom? *
1. proton and electron
2.electron only
3.electron and neutron
4.neutron and proton
Nevermind! I don't know if you can delete your answer or not but I saw that mine was wrong. Sorry!
plss answer it’s due in 5 min
Answer:
No they do not because the traits they have don't depend on their lives its the health they have.
Explanation:
Answer:
It can, because if the animal take example a bear was born with traits of short legs and small claws, he won't be able to run as fast or do as much damage to the prey if it caught up. then the bear will have a small chance of surviving due to the lack of food
Explanation:
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Which is an example of water condensing?
O Apuddle disappearing on a hot summer afternoon
O Sweat forming on your forehead after you do a lot of exercise
Ice cubes melting when you put them out in the sun.
Dew forming on plants during a cold night.
PLEASE HELP
what usally accompanies a cold spell in minosota
Answer: the polar jet stream is moving south
Explanation:
PLEASE HELP I NEED THIS QUESTION ASAP :((
Cancer cells are body cells that do not function properly, leading to abnormal growth. Which process does not function normally in cancer cells?
1. Osmosis
2. Cell cycle
3. Photosynthesis
4. Cellular Respiration
Answer:
cellular corrert me if I am wrong
Explanation:
have a nice day baby
Someone please help me on this one thanks
Answer:
25 degrees
Explanation:
if you look at the highest point and trace down, it goes to almost 25, so 25 results in the highest rate
Answer:
D
Explanation:
That is where the highest point is
Which pair best matches a type of land cover with an appropriate land use?
A. Forestland
Growing crops
B. Developed land
Grazing livestock
O C. Urban land
Growing crops
D. Pastureland – Grazing livestock
Answer:
D.
Explanation:
The force that pulls falling objects toward earth is called
Answer:
The answer is gravity: an invisible force that pulls objects toward each other. Earth's gravity is what keeps you on the ground and what makes things fall. An animation of gravity at work. Albert Einstein described gravity as a curve in space that wraps around an object—such as a star or a planet.
Choose all the answers that apply.
The speed of evaporation _____.
decreases as temperature decreases
increases as temperature increases
increases as surface area increases
decreases as surface area decreases
Answer:
increases as the temperature increases
Explanation:
this this happens because when water gets hot it separates from his own molecules creating less friction from the water allowing it to evaporate faster as heat increases
Answer:
increases as surface area increases
Explanation:
I need the anwser soon!!Which two statements describe what happens to energy during cellular
respiration?
O A Chemical energy is transferred to molecules of ATP and used to
carry out fe processes.
B. Some thermal energy is transformed into chemical energy-
C. Some chemical energy is transformed into thermal energy
D. Light energy is transferred to molecules of ATP and used to carry
out te processes
Answer:
the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.
Explanation:
Which of the following is NOT an advantage of organic fertilizers?
O They quickly release nutrients for plant uptake
O They can increase water-holding capacity
O They can increase soil drainage
O They can decrease the runoff of nutrients into local water systems
Answer:
third one is not advantage of organic fertilizer
Answer:
They quickly release nutrients for plant uptake
Explanation:
- a diagram of a food chain in the Everglades
- a plastic replica of the human digestive system
- a mathematical equation for finding the speed of an object
Would Be A Example Of...
model
hypothesis
observation
experiment
A food handler reports to work with obvious yellowing of the eyes and skin. What should the person be checked for?
Answer:
Hepatitis A
Explanation:
Hepatitis A refers to a liver disease or infection that results in mild to severe illness in humans and it is typically caused by the Hepatitis A Virus (HAV).
Generally, the main cause of Hepatitis A is as a result of the ingestion of food or consumption of water that has been contaminated by the Hepatitis A Virus (HAV) or getting in direct contact with fluids from an infected person.
Some of the symptoms of Hepatitis A are loss of appetite, feverish conditions, itching, nausea, fatigue, diarrhea, dark-colored urine, malaise, abdominal pains, yellowing of white portions of the eyes and skin (jaundice).
Hence, if a food handler reports to work with obvious yellowing of the eyes and skin. The sickness or illness that the food handler should be checked for as an adult is Hepatitis A.
Hepatitis A is a viral infection, which affects the liver. The person with obvious yellowing of eye and skin should be checked for Hepatitis A.
Hepatitis A is a viral infection caused by the Hepatovirus A. The virus affects the liver, which may lead to mild to severe illness in the patient. The disease is caused by the consumption of contaminated food and water, personal contact with the infected person, and using used drugs with other persons.
Some of the symptoms of Hepatitis A are:
Yellowing of skin and eye stomach pain diarrheafevercolored stools and dark urineTherefore, the person should be checked for Hepatitis A as he exhibits the symptoms of the disease.
To know more about Hepatitis A, refer to the following link:
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Pls help i dont understand :( will give Brainliest + 25 points!!
Answer:
competition
Explanation:
because one die and the other lives
Help I’m way behind and I need to catch up somone help please
Answer:
Turquoise lakes, ancient forests, and Rocky Mountains
Explanation:
What is water an example of
Answer:
Water as a Molecule and Compound
Explanation:
When two atoms form a chemical bond, they make a molecule. Hydrogen and oxygen are both elements, but they also normally exist as molecules consisting of two atoms (H2 and O2). Because hydrogen forms bonds with oxygen to make water, water is a molecule. Water is also a compound.
Explanation:
A liquid
H2O
What is the “self”? When we say “myself” or “yourself” what are we referring to?
Answer:
when you say self you are to the body, so when you say myself you are basically saying my body, my awereness. And when you say yourself it means their body.
Explanation:
Answer:
yourself is said to another person and you say yourself mean you and my self also means you but not used the same way.
Explanation:
hope this helps.
Glad to help
Imagine that a biological anthropologist 10,000 years in the future is examining our fossil remains. The anthropologist notices that humans have broad incisors and molars with rounded cusps. How do you think the anthropologist would interpret these traits---what diet would these traits indicate
Answer:
They were frugivores
Explanation:
Frugivores are animals that mainly eat raw fruits, vegetables, roots, seeds, shoots, etc. Frugivores need to eat diverse fruits and succulent fruit-like vegetables to fulfill their nutritional requirements, although they can supplement this diet with flowers, nectar, small insects, etc. Among their adaptations for fruit consumption, frugivore teeth are clearly distinct, having broad incisors to peel tough fruit rinds. Moreover, these animals generally have long small intestines to digest the fruit.
What is one role of the smooth endoplasmic reticulum
Answer:
I can give you 3:
1. synthesize lipids
2. metabolizes carbohydrates
3. detoxifies the cell
Explanation:
Hope this helps :)
I need help with this pleas
Answer:
To maintain homeostasis within the cell
Explanation:
The function of the cell membrane is to maintain homeostasis (stable environment) within the cell.
If a woman has both alleles in her body cells, what will her eggs contain?
If a woman has both alleles in her body cells, then her eggs will contain only one of the alleles. This is because during the formation of eggs, a process called meiosis occurs, which randomly separates and distributes the alleles to the daughter cells. Therefore, each egg will contain one of the two alleles that the woman carries.
What is allele ?An allele is a variant form of a gene that is responsible for the expression of a particular trait or characteristic of an organism.
If a woman has both alleles in her body cells, it means that she is heterozygous for that particular gene. This means that she has two different versions (alleles) of the gene, one inherited from each parent.
During the process of meiosis, which produces eggs, the two alleles will segregate, meaning that each egg will receive only one allele.
The allele that ends up in each egg is random and depends on the particular orientation of chromosomes during meiosis.
So, the woman's eggs will each contain one of the two alleles she carries, and there is a 50% chance that each egg will contain either allele.
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Which compound forms when carbon dioxide diffuses and reacts with seawater?
A. Hydroxide ions
B. Carbonate
C. Bicarbonate
D. Carbonic acid
Answer:
It's D
Explanation:
When CO2 reacts with water first carbonic acid is produced. then this carbonic acid will transform to H+ and HCO3-.
BUT BECAUSE FIRST CARBONUC ACID IS PRODUCED SO CARBONIC ACID IS CORRECT.
hope you understand.
what type of tide has the highest amplitude
What percent of the trees cut down are used for something other than paper?
35%
b. 45%
C. 55%
d 65%
Please select the best answer from the choices provided
OO *
B
Answer: Google says 65%.
Explanation: Resources that can help you with these problems can be found on Quizlet.
Answer:
D 65%
Explanation:
no explanation available
PLZ HURRY
Use the information from the article to answer the question.
Meteors
Which statements apply to meteors?
Meteors are bits of material falling through Earth's atmosphere.
Meteor showers are associated with asteroids.
Meteors create a streak of light.
The largest meteor found has a mass of 54,000 kg.
Meteor showers occur in the autumn and winter.
Answer:
Meteors are bits of material falling through Earth's atmosphere
Meteors create a streak of light
While meteors are associated w asteroids, meteor showers are more associated with comets
Meteor showers can occur when ever but there are annual showers that will occur ea yr
Answer:
1.Meteors are bits of material falling through Earth's atmosphere.
3.Meteors create a streak of light.
Explanation:
TRUST ME
anatomy
1) Which of the following terms describes the body's
ability to maintain its normal state?
Looking at a slide of axillary skin under the microscope, you notice the presence of ________ glands that are absent on slides of the scalp.
Answer:
apocrine
Explanation: