Krebs cycle produces

Options

A. ATP
B. UTP
C. CTP
D. TTP

Answer

### Step-by-Step Solution:

1. **Identify the Cycle**: The Krebs cycle is also known as the citric acid cycle. It is a crucial part of cellular respiration.

2. **Location of the Cycle**: In eukaryotic cells, the Krebs cycle occurs in the matrix of the mitochondria. This is where the enzymes necessary for the cycle are located.

3. **Products of One Turn**: For each turn of the Krebs cycle, several key products are generated:
- **Carbon Dioxide**: The cycle produces 2 molecules of carbon dioxide (CO2).
- **NADH**: It generates 3 molecules of NADH, which are important for carrying electrons to the electron transport chain.
- **FADH2**: The cycle also produces 1 molecule of FADH2, another electron carrier.
- **ATP or GTP**: Finally, one molecule of ATP (or GTP, depending on the cell type) is produced.

4. **Conclusion**: Therefore, the Krebs cycle produces a total of:
- 2 CO2
- 3 NADH
- 1 FADH2
- 1 ATP (or GTP)

5. **Correct Answer**: The correct answer to the question "Krebs cycle produces" is ATP (or GTP).