Match List-I (Compound oxidized during Kreb's cycle) with List-II (Compound formed on oxidation) and select the correct answer using the codes given below in the lists
`{:("List-I","List-II"),("(Compound oxidized during Kreb's cycle)","(Compound formed on oxidation)"),("A. Pyruvic acid","1. Acetyl Co-A"),("B. Isocitric acid","2. Succinyl Co-A"),("C."alpha-"Ketogluatric acid","3. Oxaloacetic acid"),("D. Succinic acid","4. Fumaric acid"):}`

Options

A. A-1, B-3, C-2, D-4
B. A-2, B-1, C-3, D-4
C. A-3, B-1, C-2, D-4
D. A-1, B-4, C-2, D-4

Answer

To solve the problem of matching the compounds oxidized during the Krebs cycle with the compounds formed on oxidation, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Compounds in List-I**:
- A. Pyruvic acid
- B. Isocitric acid
- C. Alpha-ketoglutaric acid
- D. Succinic acid

2. **Determine the Products Formed on Oxidation**:
- When pyruvic acid is oxidized, it forms Acetyl Co-A.
- Isocitric acid is oxidized to form Alpha-ketoglutarate.
- Alpha-ketoglutaric acid is oxidized to form Succinyl Co-A.
- Succinic acid is oxidized to form Fumaric acid.

3. **Match Each Compound from List-I with List-II**:
- A. Pyruvic acid → 1. Acetyl Co-A
- B. Isocitric acid → 3. Oxaloacetic acid
- C. Alpha-ketoglutaric acid → 2. Succinyl Co-A
- D. Succinic acid → 4. Fumaric acid

4. **Final Matching**:
- A → 1
- B → 3
- C → 2
- D → 4

5. **Select the Correct Answer**:
- The correct matches are:
- A. Pyruvic acid → 1. Acetyl Co-A
- B. Isocitric acid → 3. Oxaloacetic acid
- C. Alpha-ketoglutaric acid → 2. Succinyl Co-A
- D. Succinic acid → 4. Fumaric acid

### Summary of Matches:
- A → 1
- B → 3
- C → 2
- D → 4