Location of SDH enzyme of Krebs cycle in plants is

Options

A. Plasma membrane
B. Inner mitochondrial membrane
C. Cytoplasm
D. Matrix

Answer

**Step-by-Step Solution:**

1. **Understanding the Enzyme**: The enzyme in question is Succinate Dehydrogenase (SDH), which is involved in the Krebs cycle (also known as the citric acid cycle).

2. **Function of SDH**: Succinate Dehydrogenase catalyzes the conversion of succinate to fumarate. It also plays a role in the electron transport chain by transferring electrons to coenzyme Q (ubiquinone).

3. **Location of SDH in Eukaryotes**: In eukaryotic cells, which include plant cells, SDH is located in the inner mitochondrial membrane. This is a crucial point because it indicates where the enzyme functions within the cell.

4. **Comparison with Other Options**: The options provided include:
- Plasmodium
- Phenolphthalein
- Cytoplasm
- Mitochondria
The only relevant option for the location of SDH in plants is the inner mitochondrial membrane.

5. **Conclusion**: Therefore, the correct answer to the location of the Succinate Dehydrogenase enzyme in plants is the inner mitochondrial membrane.

**Final Answer**: The location of the SDH enzyme of the Krebs cycle in plants is the inner mitochondrial membrane.

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