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Read statements (a-c) regarding pollen ...

Read statements (a-c) regarding pollen grains and select the option that has correct statements.
a. The generative cell floats in the cytoplasm of the vegetative cell.
b. Sporollenin is absent at germ pores.
c. Pollen grain measures about 25-50 micrometer in diameter.

A

a,b and c

B

Only b and c

C

only a

D

only a and b

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the statements about pollen grains, we will analyze each statement one by one. ### Step 1: Analyze Statement A - **Statement A**: "The generative cell floats in the cytoplasm of the vegetative cell." - **Explanation**: In pollen grains, the generative cell is indeed found within the vegetative cell and is known to float freely in its cytoplasm. This statement is **correct**. ### Step 2: Analyze Statement B - **Statement B**: "Sporollenin is absent at germ pores." - **Explanation**: Sporollenin is a resistant biopolymer that forms the outer layer (exine) of the pollen grain, providing protection. However, it is indeed absent at the germ pores, which are openings in the exine where the pollen tube can emerge. Thus, this statement is also **correct**. ### Step 3: Analyze Statement C - **Statement C**: "Pollen grain measures about 25-50 micrometer in diameter." - **Explanation**: The size of pollen grains typically ranges from 25 to 50 micrometers in diameter, depending on the species. Therefore, this statement is **correct** as well. ### Conclusion Since all three statements (A, B, and C) are correct, the answer to the question is that all statements are true. ### Final Answer **All statements (a, b, and c) are correct.** ---
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