BOT 360F - Families of Vascular Plants

Quiz 2 27-Sep-11

 

(1) What distinguishes a compound leaf from a simple leaf? You may find it helpful to make a labeled sketch.

Simple leaf

Compound leaf

In the compound leaf the photosynthetic surface (blade) is broken up into separate, leaf-like structures, or leaflets. Compare the diagrams at the left in order to see why leaflets (in almost all cases) are not the same as leaves. Similarly, recall last week's lab and the way in which you decided whether a given axis was a branch (stem) or the rhachis of a compound leaf.

simple leaf
compound leaf

(2) Number the stages of land plant life cycle sequentially (i.e. 1-8), starting with the gametes. Please sketch the life cycle of land plants below, using all eight stages above in the order you’ve given. Show which portion of the life cycle is haploid, and which is diploid.

embryo  [4]

meiosis  [6]

gametophyte  [8]

zygote  [3]

sporophyte  [5]

syngamy  [2]

spore  [7]

gametes  [ 1 ]

land plant life cycle

Click HERE for Quiz 2 in 2010.


| What are plant families? | How do we distinguish them? | How and why do we study them? | Selected vascular plant families of Ontario | Reading List | Course outline |

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