chapter 27 exam
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.
