First slide

Pre-fertilisation : Structures and Events

Question

Arrange the walls of the microsporangium from periphery towards center:

Easy

A

Tapetum, Middle Layer, Endothecium and Epidermis
B

Epidermis, Endothecium, Tapetum and Middle layer
C

Epidermis, Middle Layer, Endothecium and Tapetum
D

Epidermis, Endothecium, Middle Layer and Tapetum

Solution

The walls of microsporangium from periphery towards the centre are epidermis, endothecium, middle layer and tapetum. Epidermis being the outermost layer and tapetum being the innermost layer. The tapetum nourishes the developing pollen grains.

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