Review Sheet for 4th Test�Biology 1005

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					Review Sheet for 6th Test – Botany (Chapters 21, 22 & 23)

KNOW THE NOTES!! LEARN LISTS! UNDERSTAND GAMETOPHYTE AND
SPOROPHYTE!

Chapter 21 (Seedless Vascular Plants):

Know the four phyla and what distinguishes them:
        Psilotophyta - Psilotum
        Lycophyta - ground pines or club “mosses,” Selaginella (spike “moss”) and quillworts
        Equisetophyta – horsetails or scouring rushes
        Polypodiophyta – ferns
Hints: homospory and hetersopory, where are the spores?
Remember: the gametophyte and sporophyte are nutritionally independent
(You will not be asked for the “scientific” names of the phyla.)

Chapter 22 (Gymnosperms-the first seed plants):

What’s the big advantage of seeds?
How are angiosperms different from gymnosperms?
Know the four phyla and what distinguishes them:
       Pinophyta – conifers (pines, cedars, etc. and a few without cones—yew, etc.)
       Ginkgophyta – Ginkgo
       Cycadophyta – Cycads
       Gnetophyta – Ephedra, Welwitschia, etc.
Remember: in seed plants the gametophyte is greatly reduced and is nutritionally dependent on the
sporophyte. What is the gameophyte in seed plants??
Know economic uses of gymnosperms

Chapter 23 (Angiosperms—brief)

You must understand angiosperm reproduction, and how it differs from gymnosperms and seedless
vascular plants.

Test
40 Multiple choice – 1.5 points each
14 Fill in the Blanks – examples, uses, names of structures and plants, etc. – 2 points each
2 Listing or Long Answer – similar to fill-ins, but longer answers – 6 points each (3 questions; you
    must do 2)


[Understand alternation of generations! If you missed it on the last test, learn Fig. 12.6 on p. 221.
What is the significance of meiosis and fertilization?
What is the gametophyte? Is it N or 2N? What does it produce?
What is the sporophyte? Is it N or 2N? What does it produce?]

				
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