Biochemistry Mcqs

In TCA cycle or tricarboxylic acid cycle, which is first formed________________?

(A) Isocitrate

(B) Citrate

(C) Succinate

(D) Fumarate

Submitted By: Ali Uppal


Kreb’s cycle does not occur in______________?

(A) Muscle

(B) RBC

(C) Heart

(D) All of the above

Submitted By: Ali Uppal


Which one of the following is the correct sequential order in which the given enzymes of kreb’s cycle are formed after a molecule of acetyl CoA______________?

(A) Citrate, Oxalocetate, Ketoglutarate

(B) Ketoglutarate, Oxalocetate, Citrate

(C) Citrate, Ketoglutarate, Oxalocetate

(D) Oxalocetate, Ketoglutarate, Citrate

Submitted By: Ali Uppal


Inhibition of glycolysis by O2 is known a_____________?

(A) Muni effect

(B) Pasteur effect

(C) Hill reaction

(D) Gluconeogenesis

Submitted By: Ali Uppal


In glycolysis ATP is produced by the following enzyme______________?

(A) Hexokinase

(B) Phosphoglycerate kinase

(C) Enolase

(D) Phosphohexose isomerase

Submitted By: Ali Uppal


The main pathways of metabolism in brain are______________?

(A) Glycolysis and citric acid cycle

(B) Glycogenolysis and Gluconeogenesis

(C) Embden-Meyerhof Pathway and H.M.P shunt

(D) Glycogenolysis and Citric and cycle

Submitted By: Ali Uppal


Submitted By: Ali Uppal


Step in HMP pathway requiring TPP_____________?

(A) G6 PD

(B) 6 phosphogluconate dehydrogenase

(C) Transketolase

(D) Transaldolase

Submitted By: Ali Uppal


Sites where HMP shunts can occur include_______________?

(A) Liver

(B) WBC

(C) Lactating mammary gland

(D) Testes

(D) All of the above

Submitted By: Ali Uppal


Glucose 6 phosphatase deficiency is seen in______________?

(A) Pomper’s disease

(B) Von Gierke’s disease

(C) McArdles syndrome

(D) Downs syndrome

Submitted By: Ali Uppal