chapter 27 exam

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In angiosperms, how are pollen grains carried from the male part of the flower to the female part of the flower?

A pollinator, such as a bee, may carry the pollen grains and deposit them on the female part of the flower and Wind may carry the pollen grains and deposit them on the female part of the flower are correct.

A seed contains

All of these are correct.

Fruit dispersal can be accomplished by

All of these are correct.

Which of the following is true regarding the differences between the haploid and diploid stages of a flowering plant's life cycle?

In the diploid stage, each cell contains 2 copies of each chromosome; in the haploid stage, each cell contains 1 copy of each chromosome and In flowering plants, the diploid stage is the dominant stage, while the haploid stage is seen only within the plant's reproductive structures. are correct.

Male and female gametophytes Classify the following characteristics to describe the differences between the male and female gametophytes in flowering plants. Not all choices will be used and once choice will be used more than once.

Male Gametophyte Originate as micro produced in anthers result of meiosis mature form is the pollen grain Female Gametophyte Originate as mega result of meiosis mature form is the embryo sac

Classify the following characteristics to describe the differences between monocot and eudicot seeds.

Monocot seeds contain one cotyledon cotyledons and endosperms endosperm not present Eudicot seeds contain two cotyledons store all endosperm not present

Which of the following statements best describes the process of gametophyte production in plants?

The sporophyte undergoes meiosis, producing a microspore and a megaspore. These undergo mitosis twice again to produce gametophytes and gametes, respectively.

What happens to the four cells produced in the ovule during meiosis?

Three disintegrate and the remaining cell becomes a female gametophyte.

Birds can serve as pollinators.

True

The megaspore and the microspore mother cells

both divide meiotically.

sepals petals stamens male potion carpel female

calyx corolla male from center

The flower part that contains ovules is the

carpel

Asexual reproduction produces

clones

Cell suspension culture is used to

extract chemicals.

The alternation of generations is called such because the reproductive cycle takes multiple generations to occur.

false

Haploid gametes become diploid zygotes through the process of

fertilization.

Which part of the Dipteryx tree does the fruit bat eat? Which part does the agouti eat?

fruit; seed

The sporophyte generation produces microspores that are _____ through the process of ______.

haploid; meiosis

Fruits

help with seed dispersal.

Flower structure Complete the following diagram to describe the parts of a flower and their purpose in reproduction.

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Life cycle of flowering plants Correctly label the following parts describing the life cycle of flowering plants.

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Sexual reproduction in flowering plants Place the following images into the correct order to represent the flowering plant life cycle.

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Totipotency

is the ability of individual plant cells to develop into an entire plant.

What is the relationship between the Dipteryx tree and the Mexican fruit bat?

mutualism

kinds of fruit single ovary compound

one or several chambers several groups of ovaries pineapple many individual ovaries blackberries multiple ovaries

In plants,

only a sporophyte produces spores.

Composition Aggregate: Multiple:

ovaries are from a single flower on one receptacle ovaries are from separate flowers on a common receptacle

Which of these pairs is incorrectly matched?

polar nuclei—plumule

If the agouti did not bury (and forget) any of the Dipteryx tree seeds, what kind of relationship would exist between the agouti and the Dipteryx tree?

predator-prey

The female parts of the flower consist of the

stigma, style, ovary, and ovule, collectively known as the carpel.

asexual stolon parent plant

strawberries horizontal growth new node is made clone

texture Fleshy: Dehiscent: Indehiscent:

the entire pericarp or portions of it are soft and fleshy at maturity the fruit splits open when ripe the fruit does not split open when ripe

The narrator says that the bee becomes covered in pollen as it searches for its "bribe." What serves as the bribe for the bee?

the flower's nectar

What is pollen?

the male gametophyte of a plant

A pollen grain is

the male gametophyte.

Plant tissue culture takes advantage of

totipotency.

How many different species of animals are involved in the dispersal of the seeds of the Dipteryx tree?

two

Since plants are sedentary, they must rely on pollinators to reproduce. What is the most likely meaning of the word sedentary as it is used in the previous sentence?

unable to move

Which of the following is a simple, dry, and dehiscent fruit?

walnut

Development of a eudicot embryo Place the following images into the correct sequence to represent the development of a eudicot embryo.

zygote state form cells divide create many cells= proembryo stage Globular stage cells near suspensor root others shoot heart stage enlarge torpedo stage above ground Mature embryo stage

Why is the process of fertilization in angiosperms called double fertilization?

One sperm fertilizes the egg and the other sperm unites with the two polar nuclei to form the endosperm.

What might happen if bats disappeared from an ecosystem?

Populations of night-blooming flowers would decline.

What kind of animal is an agouti?

a rodent

The male parts of the flower consist of the

anther and filament, collectively known as the stamen.

Bat-pollinated flowers

are strongly scented.


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