Q2. Which intermediate of glycolysis is formed by the phosphorylation of glucose?A. Fructose-1,6-bisphosphateB. Glucose-6-phosphateC. Dihydroxyacetone phosphateD. Pyruvic acid
Q3. Which of the following is INCORRECT about ATP?A. ATP is the main energy currency of the cell.B. ATP is only produced during glycolysis.C. ATP is required for active transport.D. ATP releases energy when hydrolyzed to ADP.
Q4. Which process ensures the regeneration of NAD⁺ in fermentation?A. Reduction of pyruvateB. Decarboxylation of glucoseC. Oxidation of NADHD. ATP hydrolysis
Q5. Which of the following is NOT a product of aerobic respiration?A. ATPB. OxygenC. Carbon dioxideD. Water
Q6. Which of the following statements about the Krebs cycle is INCORRECT?A. It takes place in the mitochondrial matrix.B. NADH and FADH₂ are produced during the cycle.C. Glucose directly enters the Krebs cycle.D. CO₂ is released as a byproduct.
Q7. Which of the following is CORRECT about aerobic respiration?A. It requires oxygen.B. It occurs only in prokaryotic cells.C. It does not involve the Electron Transport Chain.D. It produces less ATP than anaerobic respiration.
Q8. Which of the following is NOT an end product of fermentation?A. EthanolB. Lactic acidC. Carbon dioxideD. Oxygen
Q9. Which enzyme catalyzes the first step of glycolysis?A. HexokinaseB. PhosphofructokinaseC. Pyruvate kinaseD. Aldolase
Q10. Which of the following statements about the Krebs cycle is CORRECT?A. It occurs in the cytoplasm.B. It produces NADH and FADH₂.C. It does not release carbon dioxide.D. It is the final step of cellular respiration.