Biochemistry Mcqs

The end product of glycolysis under anaerobic conditions is_______________?

• (A)  Lactic acid
• (B)  Pyruvic acid
• (C)  Acetoacetic acid
• (D)  Oxaloacetic acid

Answer

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

Answer

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

Answer

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

Answer

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

Answer

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

Answer

Submitted By :Ali Uppal

Phosphofructokinase is the key enzyme of______________?

• (A)  Glycolysis
• (B)  Gluconeogenesis
• (C)  Beta oxidation
• (D)  TCA cycle

Answer

Submitted By :Ali Uppal

An enzyme not involved in glycolysis is______________?

• (A)  Enolase
• (B)  Phosphoglycero mutase
• (C)  Aldolase
• (D)  Glycerophosphate dehydrogenase

Answer

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

Answer

Submitted By :Ali Uppal

Gluconeogenesis occurs in the liver and _______?

• (A)  Kidney
• (B)  Muscle
• (C)  Heart
• (D)  Fat

Answer

Submitted By :Ali Uppal