Download Bryophytes

Review of Bryophytes
1. What were some problems that the first land plants probably encountered in moving to
land from water? Some benefits? _____________________________________________
________________________________________________________________________
________________________________________________________________________
2. The closest relatives to plants are _____________________, which are a type of what?
3. What traits are unique to land plants? _______________________________________
________________________________________________________________________
________________________________________________________________________
4. How are mosses ecologically important (be general)? __________________________
________________________________________________________________________
________________________________________________________________________
Quiz on Bryophytes
1 . Which of the following characteristics of plants is absent in their closest relatives, the
charophycean algae?
a. phragmoplasts
b. cellulose in cell walls
c. alternation of multicellular generations
d. a rose-shaped structure that makes cellulose
e. flagellated sperm
2 . Which of the following characteristics do mosses, liverworts, and hornworts share?
a. reproduction in gametangia; embryos
b. vascular tissues, true leaves, and a waxy cuticle
c. seeds
3 . Which of the following is diploid?
a. the archegonia of a moss
b. a cell in the gametangia of a moss
c. a cell that is part of the stalk of a moss sporophyte
d. a spore produced by a sporophyte
4 . In moss, _____ produce sperm.
a. sporangia
b. antheridia
c. embryos
d. archegonia
5 . The sperm produced by mosses require _____ to reach an archegonium.
a. wind
b. light
c. moisture
d. the development of a flower
e. animals
6 . In the moss life cycle _____ cells within a sporangium undergo _____ to produce
_____ spores.
a. diploid ... meiosis ... haploid
b. haploid ... mitosis ... haploid
c. diploid ... mitosis ... diploid
d. diploid ... mitosis ... haploid
e. haploid ... meiosis ... haploid
7. Plants undergo alternation of generations in which _____.
a. the sporophyte generation alternates with the gametophyte generation
b. the vascular generation alternates with the nonvascular generation
c. male plants alternate with female plants
d. antheridia alternate with archegonia
e. all of these occur
8. Fertilization in moss occurs when sperm swim from a(n) _____ to a(n) _____.
a. antheridium ... sporangium
b. sporangium ... antheridium
c. antheridium ... archegonium
d. archegonium ... antheridium
e. sporangium ... archegonium
9. The gametophyte generation of a moss _____.
a. produces spores
b. is dependent on the sporophyte
c. is haploid
d. is rarely encountered, compared with the sporophyte
10. In mosses, haploid _____ directly produce buds that grow into gametophores.
a. archegonia
b. antheridia
c. spores
d. gametophores
12. Mosses are limited mostly to moist environments because _____.
a. their pollen is carried by water
b. they lack vascular tissue
c. they have swimming sperm
d. their seeds do not store water
e. they desiccate easily