Which of the following reactions takes place in the matrix of the cell Organelle, that is referred to as 'Power house of the cell'

Options

A. Hydration of Fumaric acid
B. Oxidation of Glycolic acid
C. Dehydrogenation of Glyceraldehyde 3-phosphate
D. Decarboxylation of Malic acid

Answer

To answer the question about which reaction takes place in the matrix of the cell organelle referred to as the "powerhouse of the cell," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Powerhouse of the Cell**:
- The organelle referred to as the "powerhouse of the cell" is the mitochondria. This is where energy production occurs in the form of ATP (adenosine triphosphate).

2. **Understand the Matrix of Mitochondria**:
- The matrix is the innermost compartment of the mitochondria, where several key metabolic reactions occur, including the Krebs cycle (also known as the citric acid cycle).

3. **List the Given Reactions**:
- The question provides several reactions to consider:
- Decarboxylation of malic acid
- Dehydrogenation of glyceraldehyde 3-phosphate
- Oxidation of glycolic acid
- Hydration of fumaric acid

4. **Analyze Each Reaction**:
- **Decarboxylation of Malic Acid**: This occurs in the bundle sheath cells, not in the mitochondria.
- **Dehydrogenation of Glyceraldehyde 3-Phosphate**: This reaction takes place in the cytoplasm, specifically during glycolysis.
- **Oxidation of Glycolic Acid**: This reaction occurs in the peroxisomes, not in the mitochondria.
- **Hydration of Fumaric Acid**: This reaction occurs in the mitochondria, specifically as part of the Krebs cycle.

5. **Select the Correct Reaction**:
- Based on the analysis, the reaction that takes place in the matrix of the mitochondria is the hydration of fumaric acid.

### Final Answer:
The reaction that takes place in the matrix of the cell organelle referred to as the "powerhouse of the cell" is the **hydration of fumaric acid**.

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