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

1 molelcule of glucose forms _______ molecules of pyruvate?

(A) 1
(B) 2
(C) 3
(D) 4

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
(E) 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

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