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.