- A) Temperature and pressure
- B) Concentration of reactants and products
- C) Enzyme concentration
- D) All of these factors
Biochemistry MCQ
Total MCQ: 92
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22 Which enzyme catalyzes the first step of glycolysis?
- A) Phosphofructokinase
- B) Pyruvate kinase
- C) Hexokinase
- D) Aldolase
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
24 What is produced from pyruvate under anaerobic conditions?
- A) Acetyl-CoA
- B) Lactate
- C) Ethanol
- D) NADH
25 How many molecules of NADH are produced per molecule of glucose during glycolysis?
- A) 0
- B) 1
- C) 2
- D) 4
26 Which of the following is an intermediate of glycolysis?
- A) Acetyl-CoA
- B) Fructose-1,6-bisphosphate
- C) Citrate
- D) Oxaloacetate
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.
28 How many reactions are involved in glycolysis?
- A) 5
- B) 7
- C) 10
- D) 12
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
30 What type of phosphorylation occurs during glycolysis?
- A) Oxidative phosphorylation
- B) Substrate-level phosphorylation
- C) Photophosphorylation
- D) Chemiosmotic phosphorylation