Arrange the following compounds of Krebs cycle in an ascending order with respect to the number of carbon atoms they possess
{A) Succinic acid (B) Acetyl Co -A
(C) a - Ketoglutaric acid
(D) Citric acid

Options

A. A-D-C-B
B. C - A - D - B
C. B-A-C-D
D. D -C- B -A

Explanation

To arrange the compounds of the Krebs cycle in ascending order based on the number of carbon atoms they possess, we can follow these steps:

### Step 1: Identify the number of carbon atoms in each compound.
1. **Acetyl CoA**: This compound contains 2 carbon atoms.
2. **Succinic acid**: This compound contains 4 carbon atoms.
3. **Alpha-ketoglutaric acid**: This compound contains 5 carbon atoms.
4. **Citric acid**: This compound contains 6 carbon atoms.

### Step 2: List the compounds with their respective carbon counts.
- Acetyl CoA: 2 carbon atoms
- Succinic acid: 4 carbon atoms
- Alpha-ketoglutaric acid: 5 carbon atoms
- Citric acid: 6 carbon atoms

### Step 3: Arrange the compounds in ascending order based on the number of carbon atoms.
- Start with the compound with the least number of carbon atoms:
1. Acetyl CoA (2 carbon atoms)
2. Succinic acid (4 carbon atoms)
3. Alpha-ketoglutaric acid (5 carbon atoms)
4. Citric acid (6 carbon atoms)

### Step 4: Write the final arrangement.
The final arrangement of the compounds in ascending order with respect to the number of carbon atoms is:
**B (Acetyl CoA) < A (Succinic acid) < C (Alpha-ketoglutaric acid) < D (Citric acid)**

### Final Answer:
B, A, C, D

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