BIOL 1030 Lecture Notes - Lecture 20: Gymnosperm, Archegonium, Pollen Tube

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Kevin G.Scott

Document Summary

Bryophytes: s mall plants live in wet environments hornwarts , mos s. L ycophytes : club mos s es - live in damp areas , look like mini trees quillworts - are very aquatic s pike mos s - reproductive s tates require free water. Gymnosperms and angiosperms ang ios perms - flowering plants. S porophyte (2n) (s poro = produces s pores throug h meios is ; phyte = plant) B . derived from a z yg ote (firs t s porophyte cell) A . production of a larg e non-motile g amete (the eg g - the female part) A s mall motile s perm cell (s perm often s wims through water) Thes e plants are limited to a mois t environments: by pollen tube (cons idered more advanced - they don"t need water to reproduce) In mature to develop a pollen tube. The pollen tube delivers the s perm to the egg cell.