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Home » Biochemistry MCQ

Biochemistry MCQ

Total MCQ:
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11 What is the net gain of ATP molecules from one molecule of glucose during glycolysis?

  • A) 1 ATP
  • B) 2 ATP
  • C) 4 ATP
  • D) 6 ATP
View Answer & Discuss

12 Which enzyme regulates one of the key irreversible steps in glycolysis by converting fructose-6-phosphate into fructose-1,6-bisphosphate?

  • A) Hexokinase
  • B) Phosphofructokinase-1
  • C) Pyruvate kinase
  • D) Aldolase
View Answer & Discuss

13 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

14 Which enzyme catalyzes the first step of glycolysis?

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

15 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

16 What is produced from pyruvate under anaerobic conditions?

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

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

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

18 Which of the following is an intermediate of glycolysis?

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

19 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

20 How many reactions are involved in glycolysis?

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