Which one of the following cells undergo reduction division in the life cycle of bryophytes ?

Options

A. Some cells of leafy plant body
B. Some cells of seta
C. Some cells of female sex organ
D. Some cells of capsule

Answer

To answer the question about which cells undergo reduction division in the life cycle of bryophytes, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Reduction Division**:
- Reduction division refers to meiosis, a process that reduces the chromosome number by half, resulting in haploid cells from a diploid cell.

2. **Identifying the Life Cycle of Bryophytes**:
- Bryophytes have a life cycle that includes both a gametophyte (haploid) and a sporophyte (diploid) generation.

3. **Locating Meiosis in Bryophytes**:
- In bryophytes, meiosis occurs in the sporophyte generation, specifically within the sporangium, which is part of the sporophyte.

4. **Identifying the Cells Involved**:
- The cells that undergo reduction division (meiosis) are found in the capsule of the sporophyte, where the sporangium is located.

5. **Evaluating the Options**:
- Option 1: Some cells of the leafy plant body - Incorrect, as these are gametophyte cells.
- Option 2: Some cells of Ceta - Incorrect, as these do not undergo reduction division.
- Option 3: Some cells of the female sex organ - Incorrect, as these are also gametophytic.
- Option 4: Some cells of the capsule - Correct, as this is where meiosis occurs.

6. **Conclusion**:
- The correct answer is that the cells undergoing reduction division in the life cycle of bryophytes are found in the capsule of the sporophyte.

### Final Answer:
The cells that undergo reduction division in the life cycle of bryophytes are the **some cells of the capsule**.

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