Pollens outer layer is called ... A .... This is made up of ..B .... This is absent on the ... C .... Fill in the blanks A, B and C.

Options

A. A - intine, B - organic compound, C - micropyle
B. A - exine, B - sporopollenin, C - germ pore
C. A - exine, B - intine, C - Micropyle
D. A - micropyle, B - intine, C - exine

Answer

To solve the question, let's break it down step by step:

### Step-by-Step Solution:

1. **Identify the Outer Layer of Pollen**:
- The outer layer of pollen is known as **Exine**. This is the first part of the answer.
- **A = Exine**

2. **Determine the Composition of the Outer Layer**:
- The Exine is made up of a tough substance called **Sporopollenin**. This is the second part of the answer.
- **B = Sporopollenin**

3. **Identify Where This Layer is Absent**:
- The Exine is absent at specific points known as **germ pores**, which are openings that allow the pollen tube to emerge during fertilization.
- **C = Germ pore**

### Final Answers:
- A = Exine
- B = Sporopollenin
- C = Germ pore