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Georgia [21]
1 year ago
7

How is information from a signal molecule present outside the cell elicits intracellular response? Explain with suitable example

. What features are exhibited by signal transduction?
Biology
1 answer:
ella [17]1 year ago
6 0

The information from a signal molecule present outside the cell elicits intercellular response when the G protein coupled receptors interact with the wide variety of molecules on the outer surface of the cells.

G Proteins are the specialized proteins having the ability to bind GTP and GDP and is of three units called Alpha, Beta and Gamma subunits which together formed G proteins.

When G protein is activated it will bind GTP and each receptor binds in lock and key method and binding result into conformational change which will trigger a complex chain of events influencing different cell function.

Features exhibited by Signal Transduction System are:

1. Specificity- Signal molecules fits binding site on its complementary receptor. Other signal do not fit

2. Amplification- When enzymes activates enzymes, the number of affected molecules increases.

3. Desensitization- Receptor activation triggers a feedback circuit that shuts off the receptor or removes it from the cell surface.

4. Integration - When two signals have opposite effects on a metabolic characteristics outcome results from the integrated input from both the receptor.

To learn more about G protein here

brainly.com/question/12578485

#SPJ4

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A.<span>He is always hungry so he cannot think logically.</span>
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Free palmitate is activated to its coenzyme A derivative (palmitoyl-CoA) in the cytosol before it can be oxidized in the mitocho
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Explanation:

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3 years ago
Describe the process in which trees communicate with one another
olya-2409 [2.1K]

Answer:

Trees share water and nutrients through the networks, and also use them to communicate. They send distress signals about drought and disease, for example, or insect attacks, and other trees alter their behavior when they receive these messages.

8 0
2 years ago
11. Consider the sequence shown, determine the complementary RNA and the amino acids
mezya [45]
ATG, CAT, AAA, CGT, GTG

adenine, thymine, guanine
cytosine, adenine, thymine
adenine
cytosine, guanine, thymine
guanine, thymine

for RNA, you’ll just do the opposite of what the DNA strand says..... so A pairs with T and C pairs with G

for the actual acids, you’ll just list the names of the RNA sequence, which could be adenine, thymine, guanine, or cytosine
8 0
3 years ago
True or false: Theoretically, it is possible (but very difficult) for a population to not evolve for a while.
Debora [2.8K]

It is true that it is possible for a population to not evolve for a while.

There is something called the Hardy-Weinberg theorem, which characterizes the distributions of genotype frequencies in populations that are not evolving.

There are 5 Hardy-Weinberg assumptions:

  • no mutation
  • random mating
  • no gene flow
  • infinite population size
  • and no selection (natural nor forced).

You can see that some of these are kinda extreme and really hard to get, but with approximations, we can work.

For example, instead of an "infinite population size" we have enough with a really large population, such that genetic drift is negligible.

Concluding, yes, it is possible (but really difficult) for a population to not evolve for a while (at least, in nature), as long as the 5 assumptions above are met.

If you want to learn more, you can read:

brainly.com/question/19431143

7 0
3 years ago
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