Pollinia are sacs having

Options

A. Anther lobes
B. Pollen grains
C. Glands for secreting pollenkitt.
D. Air for making the pollen grains light.

Answer

To answer the question "Pollinia are sacs having," we need to understand what pollinia are and their function in plants, particularly in certain flowering plants like orchids and calotropis.

### Step-by-Step Solution:

1. **Definition of Pollinia**: Pollinia are specialized structures found in certain flowering plants. They are typically associated with the reproductive parts of the plant, particularly the stamens.

**Hint**: Remember that pollinia are not just any part of the plant; they are specialized structures involved in reproduction.

2. **Structure of Pollinia**: Pollinia consist of two sacs that contain pollen grains. These sacs are connected by a structure known as the translator arm, which links them to the anther lobes.

**Hint**: Visualizing the structure can help; think of the sacs as small bags that hold something important for reproduction.

3. **Function of Pollinia**: The primary function of pollinia is to facilitate the transfer of pollen grains from one flower to another, which is essential for the process of pollination. When an insect lands on the flower, it may pick up pollen grains from the pollinia and transfer them to another flower's stigma.

**Hint**: Consider how pollination works and the role of insects in this process.

4. **Identifying the Correct Answer**: Given the options:
- A) Anther lobes
- B) Pollen grains
- C) Gland for secreting nectar
- D) Air for making pollen grains light

The correct answer is **B) Pollen grains**, as pollinia are indeed sacs that contain pollen grains.

**Hint**: Focus on what is actually found inside the pollinia to guide you to the correct answer.

### Final Answer:
Pollinia are sacs having **pollen grains**.