- A) It remains unchanged.
- B) It gets phosphorylated.
- C) It gets oxidized directly.
- D) It forms fatty acids.
Biochemistry MCQ
Total MCQ: 92
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32 What type of reaction occurs during substrate-level phosphorylation in glycolysis?
- A) Oxidation-reduction reaction
- B) Hydrolysis reaction
- C) Phosphorylation reaction
- D) Condensation reaction
33 Where does glycolysis occur in the cell?
- A) Mitochondria
- B) Cytoplasm
- C) Nucleus
- D) Endoplasmic reticulum
34 Which metabolic pathway does pyruvate enter when oxygen is present?
- A) Glycolysis
- B) Fermentation
- C) TCA cycle
- D) Lipid synthesis
35 Which compound serves as an allosteric regulator derived from glycolytic intermediates?
- A) Lactate
- B) Acetyl-CoA
- C) 2,3-Bisphosphoglycerate
- D) Fructose-1,6-bisphosphate
36 Which statement about the citric acid cycle is correct?
- A) Depends on NAD+, a product of glycolysis
- B) Requires molecular oxygen
- C) Produces most ATP
- D) Final product is substrate for first reaction
37 Which molecule is metabolized in a cell to produce energy for performing work?
- A) ADP
- B) Phosphate
- C) ATP
- D) Glucose
38 True or false? The potential energy in an ATP molecule is derived mainly from its three phosphate groups.
- A) TRUE
- B) FALSE
- C)
- D)
39 Which term describes the degree to which an element attracts electrons?
- A) Redation
- B) Electronegativity
- C) Polarity
- D) Oxidation.
40 Which process is not part of the cellular respiration pathway that produces large amounts of ATP in a cell?
- A) Electron transport chain
- B) Glycolysis
- C) Krebs cycle
- D) Fermentation