Podcast
Questions and Answers
In the context of glucose metabolism, what is the primary function of insulin in the liver?
In the context of glucose metabolism, what is the primary function of insulin in the liver?
- Stimulates glycogenesis (correct)
- Blocks glycogenolysis
- Activates glucagon receptors
- Promotes pentose phosphate pathway
Which pathway runs alongside glycolysis/gluconeogenesis and produces monosaccharides, NADPH, and antioxidants?
Which pathway runs alongside glycolysis/gluconeogenesis and produces monosaccharides, NADPH, and antioxidants?
- Insulin Signaling
- Glycogenesis
- Pentose Phosphate Pathway (correct)
- Glycogenolysis
Which hormone has a direct effect of promoting glycogenolysis in muscle tissue?
Which hormone has a direct effect of promoting glycogenolysis in muscle tissue?
- Insulin in liver
- Glucagon in muscle (correct)
- Insulin in muscle
- Epinephrine in liver
What is the main function of NADPH in the Pentose Phosphate Pathway?
What is the main function of NADPH in the Pentose Phosphate Pathway?
Which phase of the Pentose Phosphate Pathway generates pentoses and produces NADPH?
Which phase of the Pentose Phosphate Pathway generates pentoses and produces NADPH?
What is the main outcome of the autophosphorylation process in insulin signaling?
What is the main outcome of the autophosphorylation process in insulin signaling?
How is the first step of the Pentose Phosphate Pathway regulated?
How is the first step of the Pentose Phosphate Pathway regulated?
During glycogenesis, what is the primary role of Akt (PKB) activated by insulin?
During glycogenesis, what is the primary role of Akt (PKB) activated by insulin?
Which of the following hormones is involved in blocking glycogenolysis by stimulating PP1?
Which of the following hormones is involved in blocking glycogenolysis by stimulating PP1?
Which pathway involves the conversion of monosaccharides to hexoses for entry into glycolysis?
Which pathway involves the conversion of monosaccharides to hexoses for entry into glycolysis?
What key process is described by the insulin signaling cascade upon ligand binding?
What key process is described by the insulin signaling cascade upon ligand binding?
What can be oxidized into CO2 according to the text?
What can be oxidized into CO2 according to the text?
What determines whether glycogen synthase is active or not?
What determines whether glycogen synthase is active or not?
Which enzyme phosphorylates glycogen synthase, leading to its inactivation?
Which enzyme phosphorylates glycogen synthase, leading to its inactivation?
What activates glycogen phosphorylase?
What activates glycogen phosphorylase?
Which molecule deactivates glycogen phosphorylase?
Which molecule deactivates glycogen phosphorylase?
In the context of glycogen metabolism, what is the role of PKA?
In the context of glycogen metabolism, what is the role of PKA?
Which enzyme is responsible for the breakdown of glycogen in a process called glycogenolysis?
Which enzyme is responsible for the breakdown of glycogen in a process called glycogenolysis?
What is the role of UTP in the synthesis of glycogen?
What is the role of UTP in the synthesis of glycogen?
Which enzyme acts as a branch point in the glycogen structure?
Which enzyme acts as a branch point in the glycogen structure?
What is the main regulator of both Glycogen phosphorylase and Glycogen synthase?
What is the main regulator of both Glycogen phosphorylase and Glycogen synthase?
Which process involves breaking down glycogen molecule one glucose at a time?
Which process involves breaking down glycogen molecule one glucose at a time?
Which component serves as a core protein and an enzyme in glycogen synthesis?
Which component serves as a core protein and an enzyme in glycogen synthesis?
What is the primary function of glycogen?
What is the primary function of glycogen?
Which enzyme is responsible for the synthesis of glycogen?
Which enzyme is responsible for the synthesis of glycogen?
What is the role of epinephrine and norepinephrine in regulating glycogen storage?
What is the role of epinephrine and norepinephrine in regulating glycogen storage?
Which of the following statements about glycogenolysis is true?
Which of the following statements about glycogenolysis is true?
In which pathway do we find reactions that generate ribose-5-phosphate?
In which pathway do we find reactions that generate ribose-5-phosphate?
How does insulin signaling affect glycogen metabolism?
How does insulin signaling affect glycogen metabolism?
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