Question

describe the structure of microsporangium and megasporangium.

Answer 1

Microsporangia are the structures that give rise to male gametes or microspores or pollen grains. Microsporangia is the plural form while microsporanium in singular.


Megasporangia are the structures that give rise to female gametes or megaspores or ovules. Megasporangia is the plural form while megasporanium in singular.


 

Answer 2

Microsporangium is the male reproductive part.Transverse section of microsporangium shows 4 wall layers; epidermis endothecium,middle layer and tapetum.  

The outer three layers provide protection and help in dehiscence of anther to release pollen. Cells of tapetum posses dense cytoplasm and have more than one nucleus.

Megasporangium is the female reproductive part also called ovule. It has an upper receptive part called stigma and an elongated tube called style. These parts have a lower potion which is swollen called ovary.