Question

Innermost microsporangial wall layer that nourishes pollen
grain is

• A. Endothecium
  
• B. Sporogenous tissue
  
• C. Tapetum
  
• D. Endodermis
  

Answer 1

The correct option is C Tapetum


Microsporangium
The part of the anther where microspores are produced is called microsporangium.

Wall layers of microsporangium
Epidermis: Outermost layer
Endothecium: Second layer, inner to epidermis
Middle layers: Third layer
Tapetum: Innermost layer

Tapetum
Tapetum is the innermost layer which is made up of multinucleated cells with dense cytoplasm.
It provides nourishment to the developing microspore mother cells.


Final answer
(b) Tapetum