‘Pollen kitt’ is chiefly made up of :

Options

A. Chlorophylls
B. Lipids
C. Carotenoids
D. Both (2) and (3)

Answer

To answer the question "‘Pollen kit’ is chiefly made up of:", we will break down the information regarding the composition of the pollen kit step by step.

### Step-by-Step Solution:

1. **Understanding Pollen Kit**:
- The pollen kit is a sticky covering found on the surface of pollen grains. It plays a crucial role in the process of pollination, particularly in plants that are pollinated by insects.

2. **Composition of Pollen Kit**:
- The pollen kit is primarily composed of lipids and carotenoids.
- Lipids are important for the structure and function of the pollen kit, providing it with the necessary stickiness to adhere to pollinators.
- Carotenoids are pigments that can also contribute to the coloration of the pollen, which may attract pollinators.

3. **Role of Tapetum**:
- The tapetum is a layer of cells in the anther that provides nutrients and materials necessary for the development of pollen grains, including the formation of the pollen kit.

4. **Exclusion of Chlorophyll**:
- Chlorophyll is primarily associated with photosynthesis in plants and is not a component of the pollen kit. Therefore, it is not included in the composition of the pollen kit.

5. **Conclusion**:
- Based on the information gathered, the correct answer to the question is that the pollen kit is chiefly made up of lipids and carotenoids. Thus, the correct option is "both second and third".

### Final Answer:
The pollen kit is chiefly made up of lipids and carotenoids.

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