Question

Which of the following structures in an anther develops into a pollen sac?

• A. Sporogenous tissue
• B. Microspore
• C. Tapetum
• D. Microsporangium

Hint:

\[ \boxed{\text{Microsporangium → Pollen sac → Pollen grains}} \]

Answer 1

The Correct Option is D

Concept: The anther consists of four microsporangia. Each microsporangium develops into a pollen sac.

Step 1: Understand structure of anther.
An anther is bilobed and each lobe contains two pollen sacs. \[ \boxed{\text{Microsporangium = pollen sac}} \]

Step 2: Development process.
Microsporangium matures and forms pollen sac containing microspores.

Step 3: Evaluate options.
Only microsporangium directly develops into pollen sac. \[ \boxed{\textbf{Option (D)}} \]