Question

question 5 (mandatory) (1.25 points) what is the main purpose of signal amplification in a signal transduction pathway? to increase the duration of the cellular response. to allow a large cellular response from a very small number of initial signaling molecules. to decrease the speed of the cellular response. to ensure that all cellular responses are identical.

Explanation:

Signal amplification in a transduction pathway is about amplifying a small initial signal (like a few signaling molecules) to produce a large cellular response. Option 1 is about duration, 3 about decreasing speed (incorrect), 4 about identical responses (not the purpose). So the correct reason is to get a large response from a small initial signal.

Answer:

To allow a large cellular response from a very small number of initial signaling molecules.