Phosphorylation Can Be Used to Either Inactivate or Activate Enzymes

question 32

Multiple Choice

Phosphorylation can be used to either inactivate or activate enzymes.This is a key element in the regulation of glucose metabolism.Phosphorylation of glycogen phosphorylase ________ it;phosphorylation of glycogen synthase ________ it.

• A)activates;activates
• B)activates;inactivates
• C)inactivates;inactivates
• D)inactivates;activates

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