Companion cells are present in the phloem of

Options

A. Pteriophytes
B. Gymnosperms
C. Angiosperms
D. Both 1 and 2

Answer

To solve the question regarding the presence of companion cells in the phloem, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Companion Cells**:
- Companion cells are specialized cells found in the phloem of vascular plants. They play a crucial role in the translocation of food (mainly sugars) throughout the plant.

2. **Identify the Types of Plants**:
- The question provides four options: pteridophytes, gymnosperms, angiosperms, and both 1 & 2.

3. **Analyze Each Option**:
- **Pteridophytes**: These are non-seed vascular plants (like ferns). They have sieve cells instead of sieve tubes and do not possess companion cells.
- **Gymnosperms**: These are seed-producing plants (like conifers) that also lack companion cells. They have sieve cells and do not have the companion cell structure.
- **Angiosperms**: These are flowering plants that have a complex phloem structure, including sieve tubes and companion cells. Companion cells are a characteristic feature of angiosperms.
- **Both 1 & 2**: Since both pteridophytes and gymnosperms do not have companion cells, this option is incorrect.

4. **Conclusion**:
- Based on the analysis, companion cells are present only in angiosperms. Therefore, the correct answer is **angiosperms**.

### Final Answer:
Companion cells are present in the phloem of **angiosperms**.