Q1. Which step of cellular respiration involves oxidative decarboxylation of pyruvate?A. GlycolysisB. FermentationC. Krebs cycleD. Link reaction
Q2. How does fermentation differ from aerobic respiration?A. Fermentation produces more ATPB. Fermentation does not require oxygenC. Fermentation takes place in mitochondriaD. Fermentation uses the Electron Transport Chain
Q3. Which of the following statements about glycolysis is CORRECT?A. It occurs in the mitochondria.B. It directly produces 38 ATP molecules per glucose.C. It occurs in the cytoplasm and is the first step of respiration.D. Oxygen is required for glycolysis to proceed.
Q4. Which statement about glycolysis is INCORRECT?A. It occurs in the cytoplasmB. It requires oxygenC. It produces pyruvateD. It generates ATP
Q5. Which of the following is INCORRECT about ATP production?A. ATP is produced in glycolysis.B. The Krebs cycle does not generate ATP.C. ATP synthase is involved in oxidative phosphorylation.D. ATP provides energy for cellular processes.
Q6. In which part of mitochondria does the Krebs cycle take place?A. Inner membraneB. Intermembrane spaceC. MatrixD. Cristae
Q7. Which of the following is a direct product of glycolysis?A. Acetyl-CoAB. PyruvateC. NAD⁺D. Oxygen
Q8. Which of the following statements about oxidative phosphorylation is CORRECT?A. It occurs in the cytoplasm.B. It produces ATP using a proton gradient.C. It does not require oxygen.D. It occurs before the Krebs cycle.
Q10. Which molecule is regenerated at the end of the Krebs cycle?A. CitrateB. Acetyl-CoAC. OxaloacetateD. Pyruvate