Question

Draw a neat and well-labelled diagram of a transverse section of a young anther. 

 

Hint:

The tapetum cells are often multinucleated and possess dense cytoplasm to nourish the developing pollen grains.

Answer 1

Step 1: A young anther is a bithecal and tetrasporangiate structure. In transverse section, it appears as a four-sided structure with four microsporangia.
Step 2: The anther wall consists of four layers: the Epidermis (outermost protection), Endothecium (helps in dehiscence), Middle layers, and the Tapetum (innermost nutrient-providing layer).
Step 3: The center of each microsporangium is occupied by Sporogenous tissue, which eventually produces pollen grains.