Question

What is prothallus in class 11 biology ch 3

Answer 1

Answer:

A prothallium, or prothallus is usually the gametophyte stage in the life of a fern or other pteridophyte.

Answer 2

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Prothallium  is usually the gametophyte stage in the life of a fern or other pteridophyte. Occasionally the term is also used to describe the young gametophyte of a liverwort or peat moss as well.  The prothallium develops from a germinating spore. It is a short-lived and inconspicuous heart-shaped structure typically 2–5 millimeters wide, with a number of rhizoids (root-like hairs) growing underneath, and the sex organs: archegonium (female) and antheridium (male). Appearance varies quite a lot between species. Some are green and conduct photosynthesis while others are colorless and nourish themselves underground as saprotrophs.

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