Question

Number of pollen sacs in an anther is:

• A. Four
• B. Two
• C. One
• D. Eight

Hint:

A bilobed anther has two lobes, and each lobe contains two pollen sacs, making a total of four pollen sacs per anther.

Answer 1

The Correct Option is A

Step 1: Structure of an anther.
A typical angiosperm anther is bilobed and each lobe contains two pollen sacs. Thus, in total, an anther has four pollen sacs.

Step 2: Function of pollen sacs.
Pollen sacs are the sites of microsporogenesis, where microspore mother cells undergo meiosis to form haploid microspores (pollen grains).

Step 3: Analysis of options.
- (A) Four: Correct, because a normal anther has four pollen sacs.
- (B) Two: Incorrect, refers only to one lobe of the anther.
- (C) One: Incorrect, anther always contains multiple sacs.
- (D) Eight: Incorrect, number is not eight.

Step 4: Conclusion.
The correct answer is (A) Four, as each anther typically has four pollen sacs.