Glycolysis, Gluconeogenesis, Glycogenesis, Glycogenolysis

Which of the following is false about glycogen molecules?

• Glycogen is polysaccharide

• Glycogen is a polymer of beta-D-Glucose

• Glycogen consists of α(1-4) and α (1-6) glycosidic linkage

• Glycogen have are a helical structure with branching.

Which of the following organs does not have glycogen storage?

• Liver

• Muscle

• Intestine

• Erythrocytes

Which of the following enzyme is responsible for glycogen breakdown?

• Glycogen phosphorylase

• Glycogen phosphatase

• Glycogen hydrolase

• Glycogen phosphoglycosidase

Liver glycogen contributes to the maintenance of glucose but not muscle glycogen. Which of the following enzyme is absent in muscle?

• Glycogen phosphorylase

• Hexokinase

• Glucose-6-phosphatase

• Debranching enzyme

Glycogen phosphorylase is responsible for the breakdown of glycogen to

• Glucose

• Glucose-1-phosphate

• Glucose-6-phosphate

• Maltose

Which of the following is not the direct/ indirect activator of glycogen phosphorylase in muscle?

• AMP

• Ca++

• Epinephrine

• Insulin

All the following enzymes are involved in glycogen synthesis except

• Hexokinase

• Phosphoglucomutase

• Glucose-1-P uridylyltransferase

• Glycogen synthetase

Which of the following statement is false regarding glycogenesis?

• Glycogen synthase is activated in the phosphorylated state.

• Glycogen synthase enzyme is inhibited by glucagon and epinephrine action.

• Protein phosphatase removes the phosphate group and activates the enzyme

• nsulin promotes glycogen synthesis in liver and skeletal muscles

Which of the following enzyme is not involved in galactose metabolism?

• Glucokinase

• Galactokinase

• Galactose-1-Phosphate Uridyl transferase

• UDP-Galactose 4- epimerase

Erythrocytes undergo glycolysis for the production of ATP. The deficiency of ……………. enzyme leads to hemolytic anemia?

• Glucokinase

• Phosphofructokinase

• Phosphoglucomutase

• Pyruvate Kinase