BIOL-3040 Lecture Notes - Lecture 2: Conifer Cone, Fern, Vessel Element
Document Summary
Your exam will consist of 30-40 short answer, drawing and multiple-choice questions based on all readings and lectures from bryophytes (chapter 5) through gymnosperms (chapter 7). 1. bryophytes: seedless non-vascular plants includes: liverworts, hornworts, and mosses. Antheridium where male gametes are produced. Sterile jacket layer surrounds numerous spermatogenous cells in the gametophyte where gametes are formed bryophyte antheridium. it is a protective layer and is called sterile simply because its cells don"t produce sperm. Charophyte algae spores do not have sporopollenin but their zygotes do. so one aspect of bryophyte evolution has been a change in the timing of sporopollenin deposition from the zygote stage to the spore stage. The chemical composition of sporopollenin is not precisely known - . Note that the sporophyte is developing while attached to the female. Bryophyte spores (and other plant spores) are encased in wall impregnated with: . The most decay- and chemical-resistant biopolymer known.
