- A) Glucose + 2 NAD+ + 2 ADP + 2 Pi → 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP + 2 H2O
- B) Glucose + O2 → CO2 + H2O + ATP
- C) Pyruvate + NADH → Lactate + NAD+
- D) Glucose + ATP → Glucose-6-phosphate + ADP
Biochemistry MCQ
Total MCQ: 92
Quiz Leaderboard
1st
Debabrata
Score: 100%
Questions: 20
2nd
Debabrata
Score: 100%
Questions: 20
3rd
Debabrata
Score: 100%
Questions: 20
4th
Sourav
Score: 90%
Questions: 20
5th
Nischal
Score: 90%
Questions: 10
6th
Priyanka
Score: 90%
Questions: 10
7th
Martin
Score: 65%
Questions: 20
8th
Vesnce
Score: 45%
Questions: 20
9th
Hector
Score: 40%
Questions: 10
10th
Sabhyata
Score: 40%
Questions: 10
32 Which enzyme catalyzes the conversion of phosphoenolpyruvate to pyruvate?
- A) Phosphofructokinase
- B) Pyruvate kinase
- C) Aldolase
- D) Enolase
33 What happens to pyruvate when oxygen is present?
- A) It is converted to lactate.
- B) It enters the TCA cycle.
- C) It is converted to ethanol.
- D) It remains in the cytoplasm.
34 What role does glyceraldehyde-3-phosphate play in glycolysis?
- A) It is a product that exits the pathway.
- B) It serves as an energy carrier.
- C) It acts as a substrate for further reactions.
- D) It inhibits hexokinase activity.
35 Which of the following enzymes catalyzes a key regulatory step in glycolysis?
- A) Hexokinase
- B) Phosphofructokinase-1
- C) Pyruvate kinase
- D) All of the above
36 In glycolysis, ATP molecules are produced by
- A) Substrate-level phosphorylation
- B) Photosynthesis
- C) Cellular respiration
- D) Photophosphorylation
37 In muscle cells, fermentation produces _____
- A) CO₂, ethanol, NADH, ATP
- B) Pyruvate
- C) Lactate and NAD⁺
- D) CO₂, ethanol, and NAD⁺
38 Which of these is NOT a product of glycolysis?
- A) NADH
- B) FADH₂
- C) Pyruvate
- D) ATP
39 In fermentation _____ is reduced and _____ is oxidized.
- A) Pyruvate ... NADH
- B) Lactate ... NADH
- C) NADH ... Lactate
- D) NAD⁺ ... Pyruvate
40 In glycolysis, what starts the process of glucose oxidation?
- A) ADP
- B) FADH₂
- C) Hexokinase
- D) NADPH