Biochemistry Mcqs

Which one of the following enzymes provides a link between glycolysis and the citric acid cycle ?

(A) Lactate dehydrogenase

(B) Pyruvate kinase

(C) Citrate synthase

(D) Pyruvate dehydrogenase

Submitted By: Ali Uppal


The uptake of glucose by the liver increase following a carbohydrate meal because____________?

(A) There is increase in phosphorylation of glucose by glucokinase

(B) GLUT-2 stimulated by insulin

(C) Glucokinase has a low Km for glucose

(D) Hexokinase in liver has a high affinity for glucose

Submitted By: Ali Uppal


The citric acid cycle is the final pathway for oxidation of______________?

(A) Enzymes

(B) Vitamins

(C) Minerals

(D) None of the above

Submitted By: Ali Uppal


In prolonged starvation the main nergy source of brain is_____________?

(A) Glucose

(B) Ketone bodies

(C) Fructose

(D) Fatty acids

Submitted By: Ali Uppal


Which of the following enzymes use NADP as coenzyme ________________?

(A) Glyceraldehyde 3 phosphate dehydrogenase

(B) Lactate dehydrogenase

(C) Glucose 6-Phosphate dehydrogenase

(D) Beta hydroxy acyl CoA dehydrogenase

Submitted By: Ali Uppal


An essential for the conversion of glucose to glycogen in liver is____________?

(A) UTP

(B) GTP

(C) Pyruvate Kinase

(D) Guanosine

Submitted By: Ali Uppal


Major contribution towards gluconeogenesis is by____________?

(A) Lactate

(B) Glycerol

(C) Ketones

(D) Alanine

Submitted By: Ali Uppal


The tissue with the highest glycogen content (mg/100gm)_____________?

(A) Liver

(B) Muscle

(C) Kidneys

(D) Testes

Submitted By: Ali Uppal


Glucose can be synthesized from all except_____________?

(A) Amino acids

(B) Glycerol

(C) Acetoacetate

(D) Lactic acid

Submitted By: Ali Uppal


The first product of glycogenolysis is_____________?

(A) Glucose 6 phosphatase

(B) Glucose 1,6 diphosphatase

(C) Glucose 1- phosphatase

(D) Fructose 1- phosphatase

Submitted By: Ali Uppal