Multiple Choice
A single epinephrine molecule can cause the release of thousands of glucose molecules from glycogen in a liver cell.Why is this a useful feature of this signal transduction pathway?
A) Having multiple steps in a signal transduction pathway increases the complexity of the system.
B) The body produces minimal amounts of epinephrine and circulates minimal amounts of this hormone in the blood.
C) The liver cell synthesizes only the proteins needed for this signal transduction pathway and not others involved in pathways not active in the liver.
D) The liver cell exhibits only on its surface receptors, such as the epinephrine receptor, that are needed for liver cell functions.
E) More protein components present in a signal transduction pathway increase the chances for a problem to arise via a mutation event.
Correct Answer:

Verified
Correct Answer:
Verified
Q43: Which molecule acts as a second messenger
Q44: Refer to the figure below. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5650/.jpg"
Q45: Refer to the figure below. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5650/.jpg"
Q46: If a signal transduction pathway involves amplification
Q47: Refer to the figure below. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5650/.jpg"
Q49: Which statement regarding chemical signaling systems is
Q50: Nitric oxide (NO) participates in a signal
Q51: Which statement about plasmodesmata is false?<br>A) Plasmodesmata
Q52: Sketch a cell membrane receptor.Identify the parts
Q53: A protein kinase can phosphorylate an enzyme