A yellow sticky substance present on the surface of entomophilous pollen grains is

Options

A. Sporopollenin
B. Pollinium
C. Lignosuberin
D. Pollenkit

Answer

**Step-by-Step Solution:**

1. **Understanding Entomophilous Pollen Grains**:
- Entomophilous pollen grains are produced by plants that are pollinated by insects. These plants have adapted features to attract and facilitate insect pollination.

2. **Identifying the Yellow Sticky Substance**:
- The question asks for a yellow sticky substance present on the surface of these pollen grains. This substance is crucial for the process of pollination as it helps in adhering pollen to the bodies of pollinators.

3. **Exploring the Options**:
- The options provided are sporopollinium, polynium, lignosubarine, and pollen kit. We need to determine which of these is the yellow sticky substance.

4. **Defining Pollen Kit**:
- The term "pollen kit" refers to the yellow sticky substance that coats the pollen grains of entomophilous plants. This sticky layer is crucial for ensuring that pollen adheres to insects, facilitating the transfer of pollen from one flower to another.

5. **Formation of Pollen Kit**:
- The pollen kit is primarily formed from the tapetum, which is the innermost layer of the anther. The tapetum secretes this oily layer that provides the necessary stickiness and sometimes a specific odor to attract pollinators.

6. **Conclusion**:
- Based on the information gathered, the yellow sticky substance present on the surface of entomophilous pollen grains is identified as the "pollen kit".

**Final Answer**: The yellow sticky substance present on the surface of entomophilous pollen grains is **pollen kit**.

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