Termination of Signaling

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6 Terms

1
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Why must the epinephrine response be terminated quickly?

The fight-or-flight response must stop once the threat is gone

2
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How does signaling stop at the receptor?

The ligand diffuses away and the receptor becomes unbound

3
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What happens to the G protein during termination?

It drops the phosphate and binds GDP, becoming inactive

4
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How is cAMP signaling stopped?

Adenylyl cyclase stops producing cAMP

5
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What role do protein phosphatases play?

They remove phosphates and deactivate kinases

6
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What happens to glycogen phosphorylase?

It stops hydrolyzing glycogen and blood glucose normalizes