Glycogen metabolism must be tightly controlled in the cells. If both processes happen at the same time, energy would be wasted. Glycogen metabolism is regulated in two ways:

Allosteric control of regulatory enzymes.

Hormonal control by covalent modification of regulatory enzymes.

Typically, products of a pathway allosterically interact with a regulatory enzyme and inhibit them while a building block of a pathway allosterically interacts with a regulatory enzyme and activate them.

What would happen to glycogen phosphorylase and glycogen synthase if there is a high amount of ATP in the cell?

Question

Glycogen metabolism must be tightly controlled in the cells. If both processes happen at the same time, energy would be wasted. Glycogen metabolism is regulated in two ways:

Allosteric control of regulatory enzymes.

Hormonal control by covalent modification of regulatory enzymes.

Typically, products of a pathway allosterically interact with a regulatory enzyme and inhibit them while a building block of a pathway allosterically interacts with a regulatory enzyme and activate them. 
   
 What would happen to glycogen phosphorylase and glycogen synthase if there is a high amount of ATP in the cell?

Accepted Answer

Glycogen phosphorylase is inhibited and glycogen synthase is activated.

Answer

Both glycogen phosphorylase and glycogen synthase are inhibited.

Answer

Both glycogen phosphorylase and glycogen synthase are activated.

Answer

Glycogen phosphorylase is activated and glycogen synthase is inhibited.

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Glycogen metabolism must be tightly controlled in the cells. If both processes h...

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