Q. Amongest plants, Golgi apparatus is absent in

Options

A. a) Sieve tube cells
B. b) Sperms of bryophytes
C. c) Sperms of pteridophytes
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Golgi Apparatus**: The Golgi apparatus is an important organelle in cells, responsible for modifying, sorting, and packaging proteins and lipids that have been synthesized in the endoplasmic reticulum (ER). It plays a crucial role in the secretion of materials and the formation of lysosomes.

2. **Identifying Plant Groups**: The question asks about the absence of Golgi apparatus in certain plant groups. We need to consider different types of plants, specifically bryophytes (like mosses) and pteridophytes (like ferns), as well as specific structures in higher plants.

3. **Analyzing the Options**:
- **Option A: Sieve Tube**: In higher plants, sieve tube elements (which are part of the phloem) are known to lack Golgi apparatus.
- **Option B: Sperm of Bryophyte**: Bryophyte sperm cells are also reported to lack Golgi apparatus.
- **Option C: Sperm of Pteridophyte**: Similarly, sperm cells in pteridophytes are known to be devoid of Golgi apparatus.
- **Option D: All of the Above**: This option suggests that all the previous statements are true.

4. **Conclusion**: Since Golgi apparatus is absent in sieve tubes of higher plants, as well as in the sperm cells of both bryophytes and pteridophytes, the correct answer is **Option D: All of the Above**.

**Final Answer**: Option D: All of the Above.

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