HOMEWORK QUESTIONS Flashcards

Which of these characteristics is shared by algae and seed plants?
A) embryo development within gametangia
B) roots and shoots
C) vascular tissue
D) pollen
E) chloroplasts

Ovules are found within structure _____.

Which of these is unique to flowering plants?

a) haploid gametophytes
b) double fertilization
c) pollen production
d) a dominant sporophyte generation
e) an embryo surrounded by nutritive tissue

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

a) male sporophytes
b) embryo sacs
c) endosperm
d) megaspores
e) pollen grains

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

a) cotyledon
b) sporophyte
c) seed coat
d) endosperm
e) fruit

A carpel is composed of _____.

a) stigma, style, and ovary
b) ovary, ovule, and anther
c) petal, sepal, and stamen
d) ovule, megasporocyte, and anther
e) zygote, anther, and endosperm

A stamen consists of _____.

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.

a) stigma
b) ovary
c) style
d) ovulate cone
e) anther

Where do fern antheridia develop?

The conspicuous part of a fern plant is a _____

In mosses gametes are produced by _____; in ferns gametes are produced by _____.

In pines, the female gametophyte contains _____, each of which contains a(n) _____.

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

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

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

It functions as a haploid food reserve.
-It functions as a triploid food reserve.
-It develops from the fusion of a microspore and a megaspore.
-It functions as a diploid food reserve.
-It is the remnant of the pollen tube.

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

In the pine, microsporangia form _____ microspores by _____.

In moss, _____ produce sperm.

The sperm produced by mosses require _____ to reach an archegonium.

The following statements describe something about the body structures or functions of fungi. Identify those statements that are correct.
Select all that apply.

Nutrients can flow through the entire mycelium in fungi with coenocytic hyphae, but not in fungi with septate hyphae.
Some fungi secrete digestive enzymes into the environment and then absorb the digested nutrients.
All fungi are heterotrophs; some species live as decomposers and others as symbionts.
Some fungi can grow as either filamentous or single-celled forms.
Mycelia are made up of small-diameter hyphae that form an interwoven mass, providing more surface area for nutrient absorption.
Cellulose gives rigidity and strength to the cell walls of fungi.

What is the Septobasidium spp?

Fungal hyphae penetrate a living scale insect's body and absorb its nutrients. The individual insect that serves as the food source is immobilized, but the rest of the insect colony benefits from the shelter the fungus provides.

Angiosperms are most closely related to _____.

Which of these was the dominant plant group at the time that dinosaurs were the dominant animals?

Plants evolved from green algae approximately _____ million years ago.

_____ are an example of seedless vascular plants.

The living plants that are most similar to the first plants to bear gametangia are the _____.