Biochemistry Mcqs

The end product of glycolysis under anaerobic conditions is_______________?

(A) Lactic acid

(B) Pyruvic acid

(C) Acetoacetic acid

(D) Oxaloacetic acid

Submitted By: Ali Uppal


The enzyme involved in the first committed step of glycolysis is____________?

(A) Phosphofructokinase

(B) Glucose-6-Phosphatase

(C) Hexokinase

(D) Enolase

Submitted By: Ali Uppal


Which of the following is correctly matched ?

(A) Isocitrate to oxalo succinate -1 ATP is formed

(B) Succinyl CoA to succinate -1 ATP is formed

(C) Succinate to furmarate -1 ATP is formed

(D) Malate to oxaloacetate -1 ATP is formed

Submitted By: Ali Uppal


In TCA cycle substrate level phosphorylation occurs at____________?

(A) Succinate dehydrogenase

(B) Malonate reduction

(C) Thiokinase

(D) None of the above

Submitted By: Ali Uppal


In TCA cycle, citrate is converted in to after losing a molecule of H2O_____________?

(A) Isocitrate

(B) Cisaconitate

(C) Oxalocetate

(D) Glutarate

Submitted By: Ali Uppal


Which metabolite of TCA cycle is used in detoxification of ammonia in brain_____________?

(A) Alpha ketoglutarate

(B) Ornithine

(C) Oxalocetate

(D) Glycine

Submitted By: Ali Uppal


Phosphofructokinase is the key enzyme of______________?

(A) Glycolysis

(B) Gluconeogenesis

(C) Beta oxidation

(D) TCA cycle

Submitted By: Ali Uppal


An enzyme not involved in glycolysis is______________?

(A) Enolase

(B) Phosphoglycero mutase

(C) Aldolase

(D) Glycerophosphate dehydrogenase

Submitted By: Ali Uppal


McArdles disease is due to the deficiency of_____________?

(A) Glucose 1 phosphatase

(B) Glucose 1,6 phosphatase

(C) Glucose 6 phosphatase

(D) Myophosphorylase

Submitted By: Ali Uppal


Gluconeogenesis occurs in the liver and _______?

(A) Kidney

(B) Muscle

(C) Heart

(D) Fat

Submitted By: Ali Uppal