Mastering Biology Chapter 30 Flashcards

Questions and Answers

Which of the following contains multiple gymnosperm ovules?

Ovule cone (correct)

Pollen grain

Stamen

Seed

What is found inside a pollen grain?

the male gametophyte

What are the main components of a mature gymnosperm seed?

seed coat, food supply, embryo

When you look at a pine or maple tree, the plant you see is a _____?

diploid sporophyte Signup and view all the answers

All seed plants _____?

are heterosporous Signup and view all the answers

Which of these structures contains a male gametophyte?

E Signup and view all the answers

In pines, the female gametophyte contains _, each of which contains a(n) _?

archegonia...egg Signup and view all the answers

In pines, an embryo is a(n) _____?

immature sporophyte Signup and view all the answers

In pine trees, pollen grains get to the ovule via the _____?

micropyle Signup and view all the answers

Which of these statements is true about the gametophyte tissue that surrounds the pine embryo?

It functions as a haploid food reserve. Signup and view all the answers

Of the four haploid cells produced by a pine cone's megasporocyte (megaspore mother cell), _____ survive(s)?

one Signup and view all the answers

In the pine, microsporangia form _ microspores by _?

haploid...meiosis Signup and view all the answers

Gymnosperms were most abundant during the _____?

Mesozoic Signup and view all the answers

In gymnosperms, megaspores develop into __________?

female gametophytes Signup and view all the answers

Ovules are found within structure _____?

B Signup and view all the answers

Which of these is unique to flowering plants?

double fertilization Signup and view all the answers

The male gametophytes of flowering plants are also referred to as _____?

pollen grains Signup and view all the answers

In flowering plants, the integuments of the ovule develop into a(n) _____?

seed coat Signup and view all the answers

A carpel is composed of _____?

stigma, style, and ovary Signup and view all the answers

A stamen consists of _____?

anther and filament Signup and view all the answers

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 Signup and view all the answers

Angiosperms are different from all other plants because only they have _____?

flowers Signup and view all the answers

Which of the following parts would you expect to be most reduced in a grass flower?

petals Signup and view all the answers

Human survival literally depends on the produce of _____?

angiosperms Signup and view all the answers

What are the products of meiosis in the life cycle of a seed plant?

megaspores or microspores Signup and view all the answers

Select the correct description of the seed.

A seed includes contributions from three separate generations of plants. Signup and view all the answers

Study Notes

Gymnosperms

Ovulate cones contain multiple gymnosperm ovules.
Pollen grains contain male gametophytes, which facilitate reproduction.
Mature gymnosperm seeds consist of a seed coat, food supply, and embryo.
The visible pine or maple tree is a diploid sporophyte.
All seed plants exhibit heterosporous reproduction.
In pines, female gametophytes contain archegonia that produce eggs.
An embryo in pines is classified as an immature sporophyte.
Pollination in pine trees occurs via micropyle access to ovules.

Gametophytes and Reproductive Structures

Surrounding the pine embryo, gametophyte tissue serves as a haploid food reserve.
Of the four haploid cells produced by a pine cone's megasporocyte, only one survives.
In pines, microsporangia yield haploid microspores through meiosis.
Gymnosperms were dominant during the Mesozoic era.
Megaspores in gymnosperms develop into female gametophytes.

Angiosperms

Double fertilization is unique to flowering plants.
Male gametophytes in flowering plants are known as pollen grains.
Integuments of the ovule in flowering plants develop into is a seed coat.
Carpels consist of stigma, style, and ovary.
Stamens comprise an anther and filament.
In angiosperms, pollination is the transfer of pollen grains to the stigma.
Angiosperms possess flowers, a distinguishing characteristic of this group.

Other Key Facts

Grasses are wind-pollinated and often have reduced petal structures.
Human survival heavily relies on angiosperm produce.
The products of meiosis in seed plants are megaspores and microspores.
Seeds include genetic contributions from three distinct generations of plants.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge with these flashcards from Biology Chapter 30. This chapter focuses on gymnosperms, their reproductive structures, and seed development. Perfect for students studying plant biology and mastering the concepts of gymnosperms.