What is the primary (first) method of signal amplification used by all three receptors in this diagram?

Question

What is the primary (first) method of signal amplification used by all three receptors in this diagram?

receptors activate AC, which creates second messengers

receptors activate transcription factors, which turn on genes

receptors activate PKC, which activates a phosphorylation cascade

receptors activate PLC, which activates second messengers

diagram link

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Answer 1

The primary (first) method of signal amplification used by all three receptors in this diagram is as follows: "Receptors activate AC, which creates second messengers." This means that the receptors stimulate adenylyl cyclase (AC), leading to the production of second messengers. Second messengers are crucial intracellular molecules that transmit and amplify the cellular response to external signals, typically regulating various cellular functions.