Which one performs both respiration and photosynthesis?

Options

A. Root cells
B. Mesophyll
C. Ovum of angiospem
D. Xylem parenchyma

Answer

To answer the question "Which one performs both respiration and photosynthesis?", we can follow these steps:

### Step 1: Understand the Processes
- **Respiration** is a process that occurs in all living cells where glucose is broken down to produce energy in the form of ATP. This process is essential for survival as it provides the energy needed for various cellular activities.
- **Photosynthesis** is a process that occurs in plants, primarily in the leaves, where sunlight, water, and carbon dioxide are used to produce glucose and oxygen. This process is vital for converting solar energy into chemical energy.

### Step 2: Identify Structures Involved
- **Respiration** occurs in all living cells, including:
- Root cells
- Mesophyll cells (found in leaves)
- Ovum of angiosperms (female gamete)
- Xylem parenchyma (living tissue in xylem)

- **Photosynthesis** primarily occurs in:
- Mesophyll cells of the leaves, which contain chlorophyll, the green pigment essential for capturing sunlight.

### Step 3: Determine the Overlap
- The **mesophyll cells** in the leaves are the structures that perform both respiration and photosynthesis. They are living cells that contain chlorophyll, allowing them to carry out photosynthesis while also engaging in respiration to produce ATP.

### Conclusion
The structure that performs both respiration and photosynthesis is the **mesophyll cells** found in the leaves of plants.

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