Plant cells that are photosynthetically active are found in the ____ layer of leaf and are ____ cells -

Options

A. Epidermis, Parenchymatous
B. Mesophyll, Parenchymatous
C. Mesophyll, Sclerenchymatous
D. Aerenchyma, Collenchymatous

Answer

To answer the question, "Plant cells that are photosynthetically active are found in the ____ layer of leaf and are ____ cells," we will follow these steps:

### Step 1: Identify the Layer of the Leaf
- The leaf has several layers, including the epidermis, mesophyll, and others. The epidermis serves as a protective layer and does not contain chlorophyll, which is essential for photosynthesis.
- The mesophyll layer, on the other hand, is where photosynthesis primarily occurs because it contains chlorophyll.

**Hint:** Think about which layer of the leaf is responsible for photosynthesis.

### Step 2: Determine the Type of Cells
- Within the mesophyll, there are two types of parenchyma cells: palisade parenchyma and spongy parenchyma.
- Palisade parenchyma cells are elongated and tightly packed, maximizing light absorption for photosynthesis.
- Spongy parenchyma cells are irregularly shaped and have air spaces, allowing for gas exchange.

**Hint:** Consider the characteristics of the cells that facilitate photosynthesis.

### Final Answer
Plant cells that are photosynthetically active are found in the **mesophyll** layer of the leaf and are **parenchyma** cells.

### Summary of Steps:
1. Identify the layer of the leaf responsible for photosynthesis (mesophyll).
2. Identify the type of cells in that layer (parenchyma cells).