Question

Match List I with List II:

	List I		List II
A.	Oxidative decarboxylation	I.	Citrate synthase
B.	Glycolysis	II.	Pyruvate dehydrogenase
C.	Oxidative phosphorylation	III.	Electron transport system
D.	Tricarboxylic acid cycle	IV.	EMP pathway

Choose the correct answer from the options given below:

• A. A – II, B – IV, C – I, D – III
• B. A – III, B – I, C – II, D – IV
• C. A – II, B – IV, C – III, D – I
• D. A – III, B – IV, C – II, D – I

Answer 1

The Correct Option is C

This question involves matching biological processes with their respective enzymes or pathways. Let's match List I with List II by considering the specific functions associated with each term:

1. Oxidative Decarboxylation: This process involves the conversion of pyruvate into acetyl-CoA with the release of carbon dioxide. The enzyme responsible for this is Pyruvate Dehydrogenase, which fits with option II.
2. Glycolysis: This is the metabolic pathway that converts glucose into pyruvate. It is also known as the EMP pathway (Embden-Meyerhof-Parnas pathway), corresponding to option IV.
3. Oxidative Phosphorylation: This is a critical part of cellular respiration occurring in the mitochondria, where ATP is generated using the Electron Transport System, which matches with option III.
4. Tricarboxylic Acid Cycle (TCA cycle or Krebs cycle): This cycle is a series of enzyme-catalyzed chemical reactions central to aerobic cellular respiration. Citrate Synthase is an enzyme of the TCA cycle, making option I the correct match.

Thus, the correct matching is:

• A – II: Oxidative Decarboxylation - Pyruvate Dehydrogenase
• B – IV: Glycolysis - EMP pathway
• C – III: Oxidative Phosphorylation - Electron Transport System
• D – I: Tricarboxylic Acid Cycle - Citrate Synthase

Therefore, the correct answer is: A – II, B – IV, C – III, D – I.