Question

Explain briefly the following term with suitable examples. Protonejjia, Antheridium, Archegonium, Diplonticand Sporophyll.

Answer 1

1. Protonema – the 1^st gametophytic stage developed by the germination of spores in Bryophytes 

2. Antheridium – Male sex organs which produce flagellated motile male gamtes. 

eg: Bryophyte 

3. Archegonium – Female sex organ which produce non-motile egg it is a flask shaped. 

eg: pteridophyte & Gymnosperm 

4. Diplontic – Diploid sporophytic generation is dominant photosynthetic independent phase of the plant and gametophytic phase is represented by haploid gametophyte 

eg: gymnosperm & angiosperm