Multiple Choice
Which of the following is true regarding G-protein coupled receptors?
14. Cell Signaling
G Protein Coupled Receptors
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cAMP levels are kept at high levels in the cell.
A
True
B
False
Verified step by step guidance1
Understand the role of cAMP (cyclic adenosine monophosphate) in the cell. It is a secondary messenger important in many biological processes, often involved in signal transduction pathways.
Recognize that cAMP levels are regulated by the balance between its synthesis by adenylyl cyclase and its degradation by phosphodiesterases.
Consider the conditions under which cAMP levels might be high. Typically, cAMP levels increase in response to certain signals, such as the binding of hormones like adrenaline to receptors on the cell surface.
Acknowledge that cAMP levels are not constantly high; they fluctuate based on cellular signals and needs. High levels are transient and occur in response to specific stimuli.
Conclude that the statement 'cAMP levels are kept at high levels in the cell' is false because cAMP levels are dynamically regulated and not maintained at high levels under normal conditions.
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