Palisade parenchyma is absent in leaves of

Options

A. Soyabean
B. Gram
C. Sorghum
D. Mustard

Answer

To answer the question regarding the absence of palisade parenchyma in leaves, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of Plants**:
- Plants are generally classified into two categories: monocots and dicots. Monocots have one cotyledon, while dicots have two.

2. **Identify Mesophyll Tissue**:
- Mesophyll is the tissue in the interior of the leaf where photosynthesis occurs. It is typically divided into two types: palisade parenchyma and spongy parenchyma.

3. **Characteristics of Monocots**:
- In monocot leaves, the mesophyll tissue is not differentiated into palisade and spongy parenchyma. Instead, it is generally composed of loosely arranged spongy parenchyma cells.

4. **Characteristics of Dicots**:
- In dicot leaves, the mesophyll is differentiated into two distinct layers: the upper layer consists of tightly packed palisade parenchyma cells, and the lower layer consists of spongy parenchyma cells.

5. **Analyze the Options**:
- The options given are soybean, gram, sorghum, and mustard.
- Soybean, gram, and mustard are dicots and will have palisade parenchyma.
- Sorghum is a monocot and will not have palisade parenchyma.

6. **Conclusion**:
- Therefore, the correct answer is that palisade parenchyma is absent in the leaves of **sorghum**.

### Final Answer:
Palisade parenchyma is absent in leaves of **sorghum**.