Podcast
Questions and Answers
Which enzyme is responsible for the conversion of UDP-glucose to glucose 1-phosphate?
Which enzyme is responsible for the conversion of UDP-glucose to glucose 1-phosphate?
- Branching enzyme
- Glycogen synthase kinase 3 (GSK3)
- UDP-glucose pyrophosphorylase (correct)
- Protein phosphorylase 1 (PP1)
Which protein kinase is activated by insulin and plays a role in glycogenesis?
Which protein kinase is activated by insulin and plays a role in glycogenesis?
- Protein kinase B (correct)
- Phosphatidyl-inositol-3-kinase
- Protein kinase A (PKA)
- Glycogen synthase kinase 3 (GSK3)
Which process is responsible for the introduction of alpha-1,6 linkages in glycogen synthesis?
Which process is responsible for the introduction of alpha-1,6 linkages in glycogen synthesis?
- Branching enzyme activity (correct)
- Glycogen synthase activity
- UDP-glucose pyrophosphorylase activity
- Protein phosphorylase 1 (PP1) activity
What is the primary role of protein phosphorylase 1 (PP1) in glycogen metabolism?
What is the primary role of protein phosphorylase 1 (PP1) in glycogen metabolism?
Which compound is produced during the conversion of glucose 6-phosphate to glucose 1-phosphate?
Which compound is produced during the conversion of glucose 6-phosphate to glucose 1-phosphate?
Which enzyme is responsible for extending both the main chain and branches in glycogen synthesis?
Which enzyme is responsible for extending both the main chain and branches in glycogen synthesis?
What enzyme is responsible for inactivating glycogen synthase through phosphorylation?
What enzyme is responsible for inactivating glycogen synthase through phosphorylation?
Which enzyme dephosphorylates and activates glycogen synthase in glycogenesis?
Which enzyme dephosphorylates and activates glycogen synthase in glycogenesis?
What molecule activates phosphatidylinositol-3-kinase in the glycogenesis pathway?
What molecule activates phosphatidylinositol-3-kinase in the glycogenesis pathway?
Which enzyme is responsible for introducing alpha-1,6 linkages in the branching of glycogen synthesis?
Which enzyme is responsible for introducing alpha-1,6 linkages in the branching of glycogen synthesis?
What kinase is inhibited to prevent the phosphorylation and inactivation of glycogen synthase in glycogenesis?
What kinase is inhibited to prevent the phosphorylation and inactivation of glycogen synthase in glycogenesis?
Glycogen synthase is active when phosphorylated.
Glycogen synthase is active when phosphorylated.
Insulin signaling leads to the activation of glycogen synthase.
Insulin signaling leads to the activation of glycogen synthase.
Glucagon activates protein kinase B in the glycogenesis pathway.
Glucagon activates protein kinase B in the glycogenesis pathway.
PP1 inactivates glycogen synthase by phosphorylating it.
PP1 inactivates glycogen synthase by phosphorylating it.
UDP-glucose activates phosphatidylinositol-3-kinase in glycogenesis.
UDP-glucose activates phosphatidylinositol-3-kinase in glycogenesis.
