AP BIOLOGY

THE CELL

CELL COMMUNICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a benefit of signal transduction pathways?
A
they prevent cells from communicating with each other
B
they help cells to perform hydrolysis
C
they lower activation energy required for metabolic reactions
D
they enable cells to amplify a message from a signal molecule
Explanation: 

Detailed explanation-1: -Signal transduction pathways amplify the incoming signal by a signaling cascade using a network of enzymes that act on one another in specific ways to ultimately generate a precise and appropriate physiological response by the cell.

Detailed explanation-2: -Signal transduction pathways regulate many important cellular functions such as growth, differentiation, metabolism, and survival.

Detailed explanation-3: -Amplification allows a cell to respond to many different hormones.

Detailed explanation-4: -The amplification of signals, defined as an increase in the intensity of a signal through networks of intracellular reactions, is considered one of the essential properties in many cell signalling pathways.

Detailed explanation-5: -Multi-step pathways (signaling cascades) can amplify a signal; even just a few molecules can cause a large cell response. Advantage: multi-step pathways can provide for more ways to coordinate and regulate the response. Multi-step pathways also allow for more specificity in the response.

There is 1 question to complete.