Glycogen Metabolism

Glycogen Metabolism

Assessment

Flashcard

Science

University

Practice Problem

Hard

Created by

Elizabeth Wal

FREE Resource

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12 questions

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1.

FLASHCARD QUESTION

Front

T or F: Glycogen stored in the liver increases in the blood in the hours between meals/rising insulin

Back

T

2.

FLASHCARD QUESTION

Front

Which enzyme regulates the breakdown of glycogen?

Back

Glycogen phosphorylase

3.

FLASHCARD QUESTION

Front

How is glycogen synthesized?

Back

UDP glucose undergoes enzymatic activity by glycogen synthase and then glycogen is produced, with UDP-glucose as a substrate

4.

FLASHCARD QUESTION

Front

What is the glycogen breakdown and synthesis cycle?

Back

Glucagon and epinephrine bind to G-protein coupled receptors and are activated by cAMP and PKA to activate protein kinases? These binds to glycogen synthase and phosphorylase and activate the synthase and deactivate the phosphorylase, breaking down glycogen? This stimulates insulin to be released and protein phosphatases activate glycogen synthase and inactivate the phosphorylase and glycogen in synthesized

5.

FLASHCARD QUESTION

Front

What would increase the rate of glycogenolysis?

Back

Increases epinephrine, increase cAMP, decreased protein phosphatase

6.

FLASHCARD QUESTION

Front

What would increase the rate of glycogen synthesis?

Back

Decreased cAMP, increased insulin, decreased protein kinase activity

7.

FLASHCARD QUESTION

Front

What is exertional rhabdomyolysis (ER?)

Back

A mutation in the glycogen synthase gene (GSY1) that causes glycogen to accumulate in the skeletal muscle of a horse with PSSM1, gets stiff muscles because glucose is not being adequately supplied

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