Chapter 30 Plant Diversity
A stamen consists of _____.
anther and filament
The embryo is
diploid
After fertilization of the ovule, the _______ develops into the seed coat.
integument
After fertilization of the ovule, the _______ develops into the food supply of the mature seed
megaspore
In flowering plants the integuments of the ovule develop into a(n) _____.
seed coat
In angiosperms, pollination is the transfer of pollen grain to the _____ of a flower on the same plant or another plant of the same species.
stigma
A carpel is composed of _____.
stigma, style, and ovary
What are the main components of a mature gymnosperm seed?
Embryo, seed coat, food supply A mature seed contains food and protection for the new diploid sporophyte generation (the embryo). Eventually, the seed may germinate, giving rise to a mature sporophyte.
The sporophyte generation is
diploid
After fertilization of the ovule, the ________ develops into the embryo of the mature seed.
fertilized egg
The gametophyte generation is
haploid
The megaspore is
haploid
Which of the following contains multiple gymnosperm ovules?
Ovulate cone An immature ovulate cone contains multiple ovules. An ovulate cone will become a mature gymnosperm cone after all of the ovules mature into seeds.
Ovules are housed within?
The ovaries
Which of these is unique to flowering plants?
double fertilization
The male gametophytes of flowering plants are also referred to as _____.
Pollen grains
Which of the following is found inside a pollen grain?
The male gametophyte A pollen grain contains the male gametophyte. Pollination of the ovule begins the process of fertilization, which results in the merging of the haploid male and female gametophytes to form a diploid zygote.
