Exam 2 - PLB 105 Heather Hallen Exam 2 Questions What is a...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
PLB 105 Heather Hallen Exam 2 Questions What is a sorus? The site of spore production in ferns. May be spots or stripes on the undersides of leaves, or a separate structure How does the gametophyte stage differ between pteridophytes and bryophytes? In pteridophytes the sporophyte stage dominates the life cycle and the gametophyte stage is a very small part. In bryophytes the gametophyte stage dominates the life cycle and the sporophyte stage is the very small part. Name two of the three groups of bryophytes. Mosses, liverworts, and hornworts. What are the three genera of Gnetophytes? Ephedra Gnetum Welwitschia Name two “living fossil” Gymnosperms Wollemia pine Dawn redwood What is taxol? What is one organism that produces it? Taxol comes from the bark of the pacific yew and is very affect against some types of breast cancer. There are endophytic fungi in the bark and one of the fungus produce taxol. Define double fertilization.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/30/2008 for the course PLB 105 taught by Professor Heatherhallen during the Fall '07 term at Michigan State University.

Page1 / 2

Exam 2 - PLB 105 Heather Hallen Exam 2 Questions What is a...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online