Chapter 30 - Plant Reproduction Flashcards
Bryophyte spores are dispersed by:
air
The pollen grain is:
the male gametophyte.
Pines use _____ to disperse pollen, whereas flowering plants often rely on _____.
wind; animals
Which of the following statements is true of the bryophyte gametophyte generation?
It is photosynthetically independent.
One of the advantages seeds have over spores is that they contain nutritional resources originating from photosynthesis by the maternal sporophyte that aid in establishment.
true
Which of the following statements about angiosperm reproduction is true?
There are a diverse array of flower shapes and colors, largely related to the mode of pollination.
In adaptation of plants to life on land, did spores or gametes evolve as the reproductive products for long-distance dispersal, and why?
Spores: A single spore, but not a single gamete, can establish a new individual.
Spores: A single spore, but not a single gamete, can establish a new individual.
The spores would dry out more quickly.
Which of the following organisms do NOT exhibit alternation of generations in their life cycles?
the green algae Chara and Choleochaete
In plants, _____ are defined as haploid (1n) cells that develop into gametophytes. Gametophytes, in turn, produce either haploid (1n) male or female _____ that can fuse to form diploid (2n) _____.
spores; gametes; zygotes
In ferns, the _____ generation is physically larger.
diploid sporophyte
Which of the following play the same functional role (establishing new individuals by dispersal)?
fern spores and gymnosperm seeds
In angiosperms, a _____ is contained in the anthers or ovaries, and the _____ consists of the rest of the plant.
gametophyte; sporophyte
The pollen grain is the:
male gametophyte
An ovule can be defined as:
a sporangium protected by sporophyte tissue layers and containing a single non-dispersed spore that has developed into a female gametophyte
