The tapetum is responsible for the nourishment of

Options

A. egg apparatus.
B. egg.
C. embryo.
D. pollens.

Answer

To solve the question regarding the role of the tapetum in plant reproduction, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Tapetum**: The tapetum is a specialized layer of cells found within the anther of flowering plants. It is located between the sporangial tissue (where pollen is produced) and the inner wall of the anther.

2. **Function of the Tapetum**: The primary function of the tapetum is to provide nourishment to the developing pollen grains. It supplies essential nutrients and hormones that are crucial for the growth and maturation of pollen.

3. **Identifying the Options**:
- a. Egg apparatus: This refers to the structures involved in fertilization, not directly nourished by the tapetum.
- b. Egg: The egg cell is part of the ovule and is not nourished by the tapetum.
- c. Embryo: The embryo develops after fertilization and is nourished by the surrounding tissues, not the tapetum.
- d. Pollens: This is the correct answer, as the tapetum is specifically responsible for the nourishment of pollen grains during their development.

4. **Conclusion**: Based on the understanding of the tapetum's role and the function it serves, the correct answer to the question is option D: Pollen.

### Final Answer:
**The tapetum is responsible for the nourishment of: D. Pollen.**

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