Multiple Choice
Which of the following enzymes are required for glycogen degradation in humans?
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Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism
Glycogen Metabolism 1
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Where does the body primarily store limited amounts of carbohydrate as glycogen?
A
Kidneys and pancreas
B
Liver and skeletal muscle
C
Adipose tissue and heart
D
Brain and lungs
Verified step by step guidance1
Understand the concept of glycogen storage: Glycogen is a polysaccharide that serves as a storage form of glucose in the body. It is primarily stored in tissues that require quick access to energy or play a role in maintaining blood glucose levels.
Identify the primary storage sites: The liver and skeletal muscle are the main sites for glycogen storage. The liver stores glycogen to regulate blood glucose levels, while skeletal muscle stores glycogen for energy during muscle activity.
Eliminate incorrect options: Kidneys and pancreas are not significant glycogen storage sites. Adipose tissue stores fat, not glycogen, and the heart primarily relies on fatty acids for energy. The brain and lungs do not store glycogen in significant amounts.
Relate the function of the liver and skeletal muscle to glycogen storage: The liver acts as a central hub for maintaining blood glucose homeostasis, while skeletal muscle uses glycogen for localized energy needs during physical activity.
Conclude that the correct answer is 'Liver and skeletal muscle' based on their roles in glycogen storage and energy metabolism.
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Glycogen Metabolism 1 practice set
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