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Questions and Answers
What is the primary function of muscle glycogen?
What is the primary function of muscle glycogen?
- To store glucose in animals
- To regulate glycogen metabolism
- To maintain blood glucose levels between meals
- To serve as a fuel reserve for the supply of ATP during muscle contraction (correct)
What type of linkages hold glucose molecules together in glycogen?
What type of linkages hold glucose molecules together in glycogen?
- α-1,4 and β-1,6
- β-1,4 and β-1,6
- β-1,4 and α-1,6
- α-1,4 and α-1,6 (correct)
What happens to glycogen stores during fasting?
What happens to glycogen stores during fasting?
- They remain constant
- They increase
- They are depleted (correct)
- They are converted to protein
What is the percentage of glycogen stored in the liver?
What is the percentage of glycogen stored in the liver?
What is the overall function of glycogen in animals?
What is the overall function of glycogen in animals?
What is the primary purpose of glycogenesis in liver and muscle?
What is the primary purpose of glycogenesis in liver and muscle?
Which enzyme is responsible for transferring the first glucose molecule to glycogenin?
Which enzyme is responsible for transferring the first glucose molecule to glycogenin?
What is the carrier of glucose molecules during glycogenesis?
What is the carrier of glucose molecules during glycogenesis?
What is the name of the protein that can accept glucose from UDPG in the absence of a glycogen primer?
What is the name of the protein that can accept glucose from UDPG in the absence of a glycogen primer?
Which enzyme is responsible for synthesizing glycogen from glucose in liver and muscle?
Which enzyme is responsible for synthesizing glycogen from glucose in liver and muscle?
What is the site of attachment of glucose from UDPG to glycogenin?
What is the site of attachment of glucose from UDPG to glycogenin?
What is the primary function of the branching enzyme in glycogen synthesis?
What is the primary function of the branching enzyme in glycogen synthesis?
What is the end product of liver glycogenolysis?
What is the end product of liver glycogenolysis?
What is the role of phosphorylase in glycogenolysis?
What is the role of phosphorylase in glycogenolysis?
What is the name of the enzyme that splits the α-1,6 linkages in glycogenolysis?
What is the name of the enzyme that splits the α-1,6 linkages in glycogenolysis?
In which tissues does glycogenolysis occur?
In which tissues does glycogenolysis occur?
What is the role of phosphoglucomutase in glycogenolysis?
What is the role of phosphoglucomutase in glycogenolysis?
What is the role of high cAMP levels in the regulation of glycogenesis and glycogenolysis?
What is the role of high cAMP levels in the regulation of glycogenesis and glycogenolysis?
What is the effect of gluc-6-P on phosphorylase activity?
What is the effect of gluc-6-P on phosphorylase activity?
What is the role of protein phosphatase in the regulation of glycogen metabolism?
What is the role of protein phosphatase in the regulation of glycogen metabolism?
What is the effect of adrenaline on glycogen metabolism?
What is the effect of adrenaline on glycogen metabolism?
What is the role of insulin in glycogen metabolism?
What is the role of insulin in glycogen metabolism?
What is the characteristic of glycogen storage diseases?
What is the characteristic of glycogen storage diseases?
What is the primary consequence of a block in gluconeogenesis in Von Gierke's disease?
What is the primary consequence of a block in gluconeogenesis in Von Gierke's disease?
Which enzyme is responsible for the accumulation of glycogen in lysosomes in all tissues, including muscles?
Which enzyme is responsible for the accumulation of glycogen in lysosomes in all tissues, including muscles?
What is the consequence of accumulated glucose-6-phosphate in Von Gierke's disease?
What is the consequence of accumulated glucose-6-phosphate in Von Gierke's disease?
What is the primary reason for lactic acidemia in Von Gierke's disease?
What is the primary reason for lactic acidemia in Von Gierke's disease?
Which enzyme is responsible for the accumulation of polysaccharide with few branch points?
Which enzyme is responsible for the accumulation of polysaccharide with few branch points?
What is the consequence of massive liver enlargement in Von Gierke's disease?
What is the consequence of massive liver enlargement in Von Gierke's disease?
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