In pteridophytes, pholem is without

Options

A. Sieve cells
B. Sieve tubes
C. Companion cells
D. Bast fibres

Answer

To answer the question "In pteridophytes, phloem is without," we need to analyze the components of phloem and determine which one is absent in pteridophytes.

### Step-by-Step Solution:

1. **Understand the Function of Phloem**:
- Phloem is responsible for the transport of food materials (mainly sugars) throughout the plant.

2. **Identify the Components of Phloem**:
- Phloem consists of several types of cells, including:
- Sieve cells
- Sieve tubes
- Companion cells
- Phloem fibers

3. **Evaluate Each Option**:
- **Option 1: Sieve Cells**:
- Sieve cells are present in the phloem of pteridophytes. Thus, this option is incorrect.
- **Option 2: Sieve Tubes**:
- Sieve tubes are also present in angiosperms but not in pteridophytes. However, pteridophytes do have sieve cells, which perform a similar function. Therefore, this option is not the correct answer.
- **Option 3: Companion Cells**:
- Companion cells are specialized cells that assist sieve tubes in angiosperms. In pteridophytes, companion cells are absent. This makes this option a strong candidate for the correct answer.
- **Option 4: Phloem Fibers**:
- Phloem fibers are present in pteridophytes as they provide structural support. Thus, this option is also incorrect.

4. **Conclusion**:
- The correct answer is that in pteridophytes, phloem is without **companion cells**.

### Final Answer:
In pteridophytes, phloem is without **companion cells**.