Podcast
Questions and Answers
What is the primary response that triggers glycogen degradation in skeletal muscle?
What is the primary response that triggers glycogen degradation in skeletal muscle?
- Hunger
- Stress
- Exercise (correct)
- Fasting
What is the enzyme that catalyses the first step of glycogen degradation?
What is the enzyme that catalyses the first step of glycogen degradation?
- De-branching enzyme
- Phosphoglucomutase
- Glycogen phosphorylase (correct)
- Glucose 6-phosphatase
What is the product of the first step of glycogen degradation?
What is the product of the first step of glycogen degradation?
- Free glucose
- Glucose 6-phosphate
- Glycogen (n-1)
- Glucose-1-phosphate (correct)
What is the purpose of the de-branching enzyme in glycogen degradation?
What is the purpose of the de-branching enzyme in glycogen degradation?
In muscle cells, what is the fate of glucose 6-phosphate produced during glycogen degradation?
In muscle cells, what is the fate of glucose 6-phosphate produced during glycogen degradation?
What is the difference between glycogen degradation in muscle and liver cells?
What is the difference between glycogen degradation in muscle and liver cells?
What is a common feature of glycogen storage diseases?
What is a common feature of glycogen storage diseases?
Which of the following is NOT a feature of glycogen storage diseases?
Which of the following is NOT a feature of glycogen storage diseases?
Which tissues are most commonly affected in glycogen storage diseases?
Which tissues are most commonly affected in glycogen storage diseases?
What is the direction of the reaction in glycogen metabolism?
What is the direction of the reaction in glycogen metabolism?
What is the byproduct of glycogen phosphorylation?
What is the byproduct of glycogen phosphorylation?
What is the high-energy molecule involved in glycogen synthesis?
What is the high-energy molecule involved in glycogen synthesis?
What is the advantage of the highly branched structure of glycogen?
What is the advantage of the highly branched structure of glycogen?
What is the limitation of glycogen storage in tissues?
What is the limitation of glycogen storage in tissues?
How much glycogen can the liver store?
How much glycogen can the liver store?
What enzyme catalyzes the conversion of glucose to glucose-6-phosphate in the liver?
What enzyme catalyzes the conversion of glucose to glucose-6-phosphate in the liver?
What is the function of UTP in glycogen synthesis?
What is the function of UTP in glycogen synthesis?
What is the term for a group of clinical conditions characterized by abnormal storage of glycogen?
What is the term for a group of clinical conditions characterized by abnormal storage of glycogen?
What is the outcome of the catalyzed reaction involving glucose-6-phosphate?
What is the outcome of the catalyzed reaction involving glucose-6-phosphate?
What is the function of liver glycogen?
What is the function of liver glycogen?
What type of control does glucagon and adrenaline promote on glycogen synthase and glycogen phosphorylase?
What type of control does glucagon and adrenaline promote on glycogen synthase and glycogen phosphorylase?
What is the effect of insulin on glycogen synthase and glycogen phosphorylase?
What is the effect of insulin on glycogen synthase and glycogen phosphorylase?
What is the effect of phosphorylation on glycogen phosphorylase?
What is the effect of phosphorylation on glycogen phosphorylase?
What is the relationship between glycogen synthase and glycogen phosphorylase when one is activated?
What is the relationship between glycogen synthase and glycogen phosphorylase when one is activated?
What is the primary source of glucose for some tissues?
What is the primary source of glucose for some tissues?
What is the approximate duration after which glycogen storage is depleted?
What is the approximate duration after which glycogen storage is depleted?
What type of bonds hold glucose residues together in glycogen?
What type of bonds hold glucose residues together in glycogen?
What is the ratio of a1-4 to a1-6 bonds in glycogen?
What is the ratio of a1-4 to a1-6 bonds in glycogen?
What is the function of a1-6 bonds in glycogen?
What is the function of a1-6 bonds in glycogen?
What is the process by which glucose is synthesized when glycogen stores are depleted?
What is the process by which glucose is synthesized when glycogen stores are depleted?
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