Podcast
Questions and Answers
In reaction 3 of glycogen synthesis, what type of bond is formed between glucose molecules and the end of a glycogen chain?
In reaction 3 of glycogen synthesis, what type of bond is formed between glucose molecules and the end of a glycogen chain?
- α (1 6) glycosidic bond
- α (1 4) glycosidic bond (correct)
- β (1 6) glycosidic bond
- β (1 4) glycosidic bond
In glycogenolysis, what is the result of reaction 1?
In glycogenolysis, what is the result of reaction 1?
- Glucose molecules are released from the glycogen chain (correct)
- Glucose molecules are converted to glycogen
- Glucose molecules are dephosphorylated to yield free glucose
- Glucose molecules are phosphorylated to yield glucose-6-phosphate
What is the purpose of the debranching enzyme in glycogenolysis?
What is the purpose of the debranching enzyme in glycogenolysis?
- To phosphorylate glucose molecules
- To convert glucose-1-phosphate to glucose-6-phosphate
- To break α (1 6) glycosidic bonds (correct)
- To break α (1 4) glycosidic bonds
In reaction 3 of glycogenolysis, what is the outcome of the isomerization reaction?
In reaction 3 of glycogenolysis, what is the outcome of the isomerization reaction?
What is the final product of glycogenolysis in liver and kidney cells?
What is the final product of glycogenolysis in liver and kidney cells?
In reaction 1 of glycogenolysis, what is the role of glycogen phosphorylase?
In reaction 1 of glycogenolysis, what is the role of glycogen phosphorylase?
What is the result of the oxidation and phosphorylation reaction in reaction 6?
What is the result of the oxidation and phosphorylation reaction in reaction 6?
What is the role of triose phosphate isomerase in reaction 5?
What is the role of triose phosphate isomerase in reaction 5?
What is the net result of reactions 4-6 in terms of energy generation?
What is the net result of reactions 4-6 in terms of energy generation?
What is the purpose of the phosphorylation reaction in reaction 7?
What is the purpose of the phosphorylation reaction in reaction 7?
What is the result of the cleavage reaction in reaction 4?
What is the result of the cleavage reaction in reaction 4?
How many carbon atoms from glucose are contained in the two triose phosphates after reaction 5?
How many carbon atoms from glucose are contained in the two triose phosphates after reaction 5?
What is the type of glycosidic bonds between glucose molecules in glycogen?
What is the type of glycosidic bonds between glucose molecules in glycogen?
What is the byproduct of the reaction catalyzed by pyrophosphorylase in glycogenesis?
What is the byproduct of the reaction catalyzed by pyrophosphorylase in glycogenesis?
What happens when energy stores (glycogen) are full?
What happens when energy stores (glycogen) are full?
What is the first step in glycogen synthesis?
What is the first step in glycogen synthesis?
What is the energy source for the phosphorylation reaction in glycogenesis?
What is the energy source for the phosphorylation reaction in glycogenesis?
What is the enzyme responsible for the isomerization reaction in glycogenesis?
What is the enzyme responsible for the isomerization reaction in glycogenesis?
