To match List I with List II correctly, we need to understand the processes and enzymes involved:
- Oxidative decarboxylation refers to the process where pyruvate is converted to acetyl-CoA with the release of carbon dioxide. This reaction is catalyzed by the enzyme Pyruvate dehydrogenase. Thus, A matches with II.
- Glycolysis is the metabolic pathway that converts glucose into pyruvate, generating ATP in the process. This occurs through a series of steps known as the EMP pathway (Embden-Meyerhof-Parnas pathway). Therefore, B matches with IV.
- Oxidative phosphorylation is the process by which ATP is formed as electrons are transferred through the Electron transport system (ETS). This matches C with III.
- Tricarboxylic acid cycle involves the conversion of acetyl-CoA into citrate by the enzyme Citrate synthase. Hence, D matches with I.
Therefore, the correct answer is: A – II, B – IV, C – III, D – I.