Homework Help

Describe both the gametophyte and sporophyte for each of the 5 plant phyla    

user profile pic

user5265955 | (Level 3) eNoter

Posted April 25, 2013 at 3:18 PM via web

dislike 0 like

Describe both the gametophyte and sporophyte for each of the 5 plant phyla

 

 

1 Answer | Add Yours

user profile pic

orchid101 | College Teacher | (Level 1) Associate Educator

Posted April 26, 2013 at 11:42 AM (Answer #1)

dislike 0 like

The prothallus is the gametophyte, i.e. it bears gametes-male (antherozoid) and female (ovum), and reproduces by the sexual method. Spores remain alive only for a few days. Under favourable conditions their germination begins and gives rise to prothalli. The prothallus is the gametophyte since it bears antheridia or archegonia or normally both.

Sporophyte bears spores and reproduces by the asexual method. On the under surface of the leaf or the sporophyll a number of dark brown structures, pale green when young, may be seen; these are called sori. Each sorus is a group of sporangia.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes