Common between guard cells and mesophyll cells is

Options

A. Dumbell shaped
B. Differentially thick walls
C. Presence of chloroplasts
D. Uniformly thin cell wall .

Answer

To determine what is common between guard cells and mesophyll cells, we can analyze the characteristics of each type of cell and compare them based on the provided options.

### Step-by-Step Solution:

1. **Identify Guard Cells**:
- Guard cells are specialized cells that control the opening and closing of stomata in plant leaves.
- In dicots, guard cells are typically kidney-shaped, while in monocots, they are dumbbell-shaped.

2. **Identify Mesophyll Cells**:
- Mesophyll cells are the primary site of photosynthesis in leaves. They contain chloroplasts, which are essential for the photosynthetic process.

3. **Analyze the Options**:
- **Option A: Dumbbell shape**: This is incorrect as it only describes guard cells in monocots, not a common feature.
- **Option B: Differentially thickened wall**: This is also incorrect because only guard cells have differentially thickened walls; mesophyll cells have uniformly thin walls.
- **Option C: Presence of chloroplast**: This is correct because both guard cells and mesophyll cells contain chloroplasts.
- **Option D: Uniformly thin cell wall**: This is incorrect as it describes mesophyll cells, not a common feature.

4. **Conclusion**:
- The correct answer is **C: Presence of chloroplast**. Both guard cells and mesophyll cells contain chloroplasts, which is a common feature.

### Final Answer:
The common feature between guard cells and mesophyll cells is the **presence of chloroplasts**.

---