The difference in concentration between solutions on either side of a cell membrane is a concentration gradient.
In the field of biology, a concentration gradient can be described as a difference in the concentration of molecules inside and outside of a cell. It is due to concentration gradient that molecules move into and out of a cell through the cell membrane.
Some molecules move from an area of higher concentration gradient to an area of lower concentration along the concentration gradient. Diffusion is an example of such a process.
On the other hand, some molecules move from an area of lower concentration to an area of higher concentration against the concentration gradient. Active transport is an example of such a process.
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Answer:
B. The amount of unbound cyclin E is lowest as the cell enters S.
Explanation:
The reproduction of the cell is a cycle that it regulates by itself, depending the demand of a certain cell.
In the case of the mitosis, in Each change from G1 to S to G2 to M is regulated by some proteins like the cyclin.
In the case of the cdK2 is ncessary to pass the control point to pass from the stage G1 to the stage S.
Another characteristic of the cyclins, is that these proteins are synthetized and degraded constantly during the hole process.
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1. Cayote’s population would go down because their source of prey has gone down because of poisoning.
2. Squirrels are omnivores, meaning they can still survive without eating meat because they also eat plants (nuts).
The correct statement is that the concentration of acetylcholine will be inhibited by enzymes and can cause several diseases as follows:
- Alzheimer's disease-related to damage to brain cells,
- memory loss,
- and thinking ability.
How to reduce the symptoms of these diseases is to use drugs that contain cholinesterase inhibitors.
<h2>Further Explanation
</h2>
Acetylcholine is a neurotransmitter that plays an important role in the functioning of the autonomic nervous system. Acetylcholine is one of the most commonly recognized neurotransmitters or nerve stimulating chemicals. These neurotransmitter compounds can be found in the nervous system.
There are several side effects of the acetylcholine drug, which are as follows:
- Can cause a lot of sweat
- Excessive salivation
- Stomach ache
- Headache
- Blood vessel dilation
- Nausea and vomiting
- Diarrhea is a sign of an increase in parasympathetic tone.
Learn More
- about chemicals brainly.com/question/8735339
- about enzymes brainly.com/question/6577765
Details
Grade: Middle School
Subject: Biology
Keyword: chemicals, enzymes, Acetylcholine, neurotransmitter
Consumer takes energy away
