plant cells involved in secretion and absorption of solutes are

Options

A. Glandular cells
B. Transfer cells
C. Active cells
D. Junction cells.

Answer

To answer the question "plant cells involved in secretion and absorption of solutes are," we will analyze the options provided:

1. **Glandular Cells**:
- Glandular cells are specialized cells that form glands. They are primarily involved in secretion processes, such as the secretion of hormones, enzymes, and other substances. However, they are not specifically noted for absorption.

2. **Transfer Cells**:
- Transfer cells are specialized parenchyma cells that have numerous infoldings in their inner plasma membranes. These infoldings increase the surface area for absorption and secretion of solutes. They are specifically adapted for the transport of substances between different tissues, making them crucial for both secretion and absorption processes.

3. **Active Cells**:
- Active cells refer to rapidly dividing meristematic tissues. These cells are involved in growth and differentiation but do not play a direct role in the secretion or absorption of solutes.

4. **Junction Cells**:
- Junction cells are involved in connecting various tissues for communication. They facilitate the interaction between different plant tissues but are not directly involved in the secretion or absorption of solutes.

Based on this analysis, the correct answer is:

**Transfer Cells** (Option B) are the plant cells involved in the secretion and absorption of solutes.

### Step-by-Step Solution:
1. **Identify the Options**: List the four options given: glandular cells, transfer cells, active cells, and junction cells.
2. **Analyze Glandular Cells**: Understand that these cells are involved in secretion but not specifically in absorption.
3. **Analyze Transfer Cells**: Recognize that these specialized parenchyma cells have infoldings in their membranes, aiding in both secretion and absorption.
4. **Analyze Active Cells**: Note that these are meristematic tissues involved in growth, not secretion or absorption.
5. **Analyze Junction Cells**: Realize that these cells connect tissues for communication and do not directly participate in secretion or absorption.
6. **Conclude the Correct Answer**: Based on the analysis, determine that transfer cells are the correct answer as they are involved in both secretion and absorption of solutes.