Download Plant Review Wkst 1

Plants
January 30, 2008
Vocabulary:
Apical meristem
Proximal meristem
Alternation of generation
Sporophyte
Gametophyte
Heteromorphic
Pollination
Fertilization
Cellulose
Bryophyta
Pterophyta
Coneferophyta
Anthophyta
Gymnosperm
Angiosperm
Ovary
Seed
Spore
Xylem
Phloem
Monoecious
Dioecious
Double Fertilization
1. What were some problems that the first land plants encountered in moving to land from water? How did
they succeed to overcome each problem? Some benefits?
2. The closest relatives to plants are ___________, which are a type of _______________
3. What are the evidences that plants evolved from green algae.
4. Write the letter in the blank.
A.
B.
C.
D.
E.
F.
G.
H.
I.
Green Algae
Pterophyta(Fern)
Anthophyta(Angiosperm)
Vascular Tissue
Flowers and fruits
Coniferophyta (Gymnosperm)
Seeds
Bryophyta(Mosses)
Multicellular
5. Discuss 4 major periods of plant evolution.
a. 425 mya:
Adaptations:
b. 400 mya:
Adaptations:
c. 360 mya:
Adaptations:
d. 130 mya:
Adaptations:
6. What traits are unique to land plants?
7. The Chlorophyta (green algae) are believed to share a common ancestor with plants because:
a. The are the only multicellular algal protists
b. The do not have flagellated gametes
c. They are the only protists whose plastids evolved from cyanobacteria
d. Their chloroplasts are similar in ultrastructure and pigment composition to those of plants
e. They are the only algae that exhibit alternation of generations
8. Xylem and phloem are found in:
a. All plants
b. Bryophytes, ferns, conifers, and angiosperms
c. Only the gametophytes of vascular plants
d. The vascular plants, which include ferns, conifers, and angiosperms
e. Only the vascular plants with seeds
9. Apical meristems are
a. Gametangia
b. Sporangia
c. Roots
d. The plant’s “stem cells”
10. Which of the following characteristics of plants is absent in their closest relatives, the charophycean
algae?
a. chlorophyll b
b. cellulose in cell walls
c. alternation of multicellular generations
d. photosynthetic properties
e. rose-shaped complexes that synthesize cell wall
11. Why did plants move to the terrestrial environment?
a. Fewer predators on land
b. More competition with other plants on land
c. Less pathogens on land
d. a and c only
e. all of the above
12. List human uses of mosses.
13. Human uses of Conifers.
14. In angiosperms how many sperm fertilize an egg?
a. one
b. two
c. three
d. four
15. What is one way in which perfect flowers try to prevent self-fertilization?