Choose the incorrect statement w.r.t. leaves

Options

A. Nearly same size of vascular bundles are seen in monocot leaf
B. The stomata are present on both surfaces in isobilateral leaf
C. Mesophyll is not differentiated in dicot leaf
D. Mesophyll is photosynthetic in leaves

Answer

To solve the question of identifying the incorrect statement with respect to leaves, we will analyze each of the provided statements one by one.

### Step-by-Step Solution:

1. **Statement 1**: "Nearly same size of vascular bundles are seen in case of the monocot leaf."
- **Analysis**: This statement is correct. In monocot leaves, the vascular bundles (xylem and phloem) are typically of similar size and are scattered throughout the leaf.

2. **Statement 2**: "Stomata present on both surfaces in isobilateral leaves."
- **Analysis**: This statement is also correct. Isobilateral leaves have a similar appearance on both sides and typically possess stomata on both the upper and lower surfaces, facilitating gas exchange.

3. **Statement 3**: "Mesophyll is not differentiated in dicot leaf."
- **Analysis**: This statement is incorrect. In dicot leaves, the mesophyll is differentiated into two types: palisade mesophyll (which is elongated and located beneath the upper epidermis) and spongy mesophyll (which is located beneath the lower epidermis). Therefore, this statement is false.

4. **Statement 4**: "Mesophyll is photosynthetic in leaves."
- **Analysis**: This statement is correct. The mesophyll tissue contains chlorophyll, which is essential for photosynthesis, making this statement true.

### Conclusion:
The incorrect statement with respect to leaves is **Statement 3**: "Mesophyll is not differentiated in dicot leaf."