Question

What is the difference between Homothallus and Heterothallus; Megasporangium and Microsporangium ; Protenema and Prothallus ?

Answer 1

• Homothallus: Having male and female reproductive structures on the same thallus, as in some fungi and algae.
• Heterothallus: Producing male and female reproductive structures in different structures or plants

• Microsporangia are the structures that give rise to male gametes or microspores or pollen grains. (Microsporanium - singular).
• Megasporangia are the structures that give rise to female gametes or megaspores or ovules. (Megasporanium – singular).

• Protonema is the first stage in the life cycle of a moss, developing directly from the spore. It consists of creeping, green, branched, and often filamentous structures.
• Prothallus is the gametophyte of pteridophytes like fern that bears sex organs and produces gametes.