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Home » Biochemistry MCQ

Biochemistry MCQ

Total MCQ:
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21 What drives the directionality of reactions in glycolysis?

  • A) Temperature and pressure
  • B) Concentration of reactants and products
  • C) Enzyme concentration
  • D) All of these factors
View Answer & Discuss

22 Which enzyme catalyzes the first step of glycolysis?

  • A) Phosphofructokinase
  • B) Pyruvate kinase
  • C) Hexokinase
  • D) Aldolase
View Answer & Discuss

23 Which compound serves as an allosteric regulator derived from a glycolytic intermediate?

  • A) Lactate
  • B) Acetyl-CoA
  • C) 2,3-Bisphosphoglycerate
  • D) Fructose-2,6-bisphosphate
View Answer & Discuss

24 What is produced from pyruvate under anaerobic conditions?

  • A) Acetyl-CoA
  • B) Lactate
  • C) Ethanol
  • D) NADH
View Answer & Discuss

25 How many molecules of NADH are produced per molecule of glucose during glycolysis?

  • A) 0
  • B) 1
  • C) 2
  • D) 4
View Answer & Discuss

26 Which of the following is an intermediate of glycolysis?

  • A) Acetyl-CoA
  • B) Fructose-1,6-bisphosphate
  • C) Citrate
  • D) Oxaloacetate
View Answer & Discuss

27 What does the term “ATP investment phase” refer to in glycolysis?

  • A) The phase where no ATP is consumed.
  • B) The phase where ATP is generated.
  • C) The initial steps where ATP is consumed.
  • D) The final steps where energy is released.
View Answer & Discuss

28 How many reactions are involved in glycolysis?

  • A) 5
  • B) 7
  • C) 10
  • D) 12
View Answer & Discuss

29 Which reaction generates water as a byproduct during glycolysis?

  • A) Conversion of glucose to glucose-6-phosphate
  • B) Conversion of phosphoenolpyruvate to pyruvate
  • C) Conversion of dihydroxyacetone phosphate to glyceraldehyde-3-phosphate
  • D) None generate water directly
View Answer & Discuss

30 What type of phosphorylation occurs during glycolysis?

  • A) Oxidative phosphorylation
  • B) Substrate-level phosphorylation
  • C) Photophosphorylation
  • D) Chemiosmotic phosphorylation
View Answer & Discuss
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