Deck 5: Plant Life Cycle: Flowers

Question 1

What is the fate of the four microspores that result from meiosis in a typical angiosperm?

A)all four develop into pollen grains
B)two develop into pollen grains: two develop into the pollen outer wall
C)one develops into a pollen grain;the other three become megaspores
D)one develops into a pollen grain: the other three degenerate

Answer 1

A

Question 2

All of the following except one are parts of a typical carpel.Choose the exception.

A)style
B)filament
C)stigma
D)ovary

Answer 2

B

Question 3

Which of the following statements is incorrect?

A)A flower can be both incomplete and perfect.
B)A flower can be both complete and imperfect.
C)A flower can be both incomplete and imperfect.
D)A flower can be both complete and perfect.
E)More than one of these is not a correct statement.

Answer 3

B

Question 4

Which of the following plant structures are not haploid?

A)spores
B)gametophytes
C)sporophytes
D)gametes
E)All of these plant structures are haploid.

Question 5

Lilies have a diploid number of 24.After meiosis,how many chromosomes do each of the gametes have?

A)24
B)48
C)12
D)6

Question 6

Which of the following is triploid in a typical angiosperm?

A)the egg
B)the megaspore mother cells
C)the endosperm
D)the embryo
E)the microspore mother cells

Question 7

What is the fate of the four megaspores that result from meiosis in a typical angiosperm?

A)all four develop into ovules
B)two develop into ovules: two develop into the seed coat
C)one develops into an ovule;the other three become microspores
D)one develops into an ovule: the other three degenerate

Question 8

In the life cycle of a typical angiosperm,meiosis leads directly to the formation of

A)sperm and eggs.
B)a zygote.
C)gametophytes.
D)microspores and megaspores.
E)sporophytes.

Question 9

Which of the following becomes a fruit?

A)the entire flower
B)the carpel
C)the anther
D)the ovary
E)the ovule

Question 10

Which of the following is the correct sequence of floral structures from the outside to the inside of a typical flower?

A)androecium,calyx,corolla,gynoecium
B)calyx,corolla,gynoecium,androecium
C)calyx,corolla,androecium,gynoecium
D)corolla,calyx,androecium,gynoecium
E)calyx,androecium,gynoecium,corolla

Question 11

What are breaking tulips?

A)tulips with bulbs that shatter on planting
B)tulips with pedicels that split along a seam
C)tulips with bulbs that split leading to more than one flower per bulb
D)tulips with stripes of vivid color against a contrasting background

Question 12

The _______ of a flower produce eggs while the _______ of the flower produce sperm.

A)ovary - anther
B)style - filament
C)stigma - anther
D)style - stigma
E)anther - ovary

Question 13

A plant with imperfect flowers has

A)stamens and carpels but lacks either sepals or petals
B)lacks either stamens or carpels
C)lacks either stamens,carpels,sepals,or petals
D)problems adjusting

Question 14

What would you find between the sepals and the stamen of a typical complete flower?

A)the calyx
B)the gynoecium
C)the androecium
D)the corolla

Question 15

In the life cycle of a typical angiosperm,of the following which undergoes meiosis?

A)megaspores
B)microspore mother cells
C)female gametophytes
D)embryos
E)more than one of these undergoes meiosis

Question 16

When in meiosis is the haploid condition established?

A)after the first cytokinesis
B)after the second cytokinesis
C)between metaphase II and anaphase II
D)between telophase II and the second cytokinesis

Question 17

What does the virus that causes the breaking of tulips do to cause this effect?

A)infects the phloem and reduce the flow of sucrose to the bulbs
B)suppresses the expression of reds and blues in some perianth cells but not others
C)causes the cloning of cells similar to cancer
D)creates holes in the phloem allowing for the leakage of sap that attracts aphids who then create tunnels to the bulbs

Question 18

In what stage of meiosis do homologous chromosomes separate?

A)metaphase I
B)anaphase I
C)metaphase II
D)anaphase II

Question 19

You find a flower that is dioecious,hypogenous,and zygomorphic.Which is the correct interpretation of this statement?

A)The flower has both sexes,an inferior ovary,and bilateral symmetry.
B)The flower has one sex,a superior ovary,and bilateral symmetry.
C)The flower has one sex,an inferior ovary,and bilateral symmetry
D)The flower has both sexes,a superior ovary,and radial symmetry

Question 20

The green leafy structures of a typical flower the covers the unopened flower bud are the

A)sepals.
B)petals.
C)stamens.
D)carpels.
E)corolla.

Question 21

A carpellate flower is a:

A)unisexual male flower
B)unisexual female flower
C)flower with both sex organs
D)flower without petals
E)none of the above

Question 22

The female gametophyte of flowering plants is called the ______.

Question 23

In squash flowers,the flower parts are inserted above the ovary.This condition is called

A)hypogynous
B)perigynous
C)hypergynous
D)epigynous

Question 24

In flowers meiosis occurs in the ______ of the stamen and the ______ of the carpel.

Question 25

The pollen tube of the germinated pollen grain serves to:

A)deliver the sperm to the female gametophyte
B)anchor the pollen grain on the stigma of the flower
C)deliver nutrients to the ovule within the ovary
D)none of the above

Question 26

Homologous chromosomes cross over and exchange genes during what stage of meiosis?

A)prophase I
B)prophase II
C)metaphase I
D)telophase II
E)anaphase I

Question 27

Which of the following is not a part of the ovule?

A)polar nuclei
B)synergids
C)extine
D)antipodals

Question 28

An inflorescence which is pendulous (hanging)and consists only of unisexual flowers is called a:

A)catkin
B)spike
C)raceme
D)head
E)umbel

Question 29

Flowers pollinated by birds are often:

A)heavily scented
B)night bloomers
C)red
D)speckled to resemble insects
E)lacking petals

Question 30

The nutritive value of rice,wheat,and corn grains is in the

A)endosperm.
B)seed coat.
C)embryo.
D)cotyledons.

Question 31

For which of the following has pollen been shown to be important?

A)the search for oil deposits
B)Navajo sacred ceremonies
C)determining the diets of ancient peoples
D)causing hay fever
E)all of these are reasons why pollen is important

Question 32

The complemenatary adaptations of flowers and their pollinators is a result of

A)sexual selection.
B)coevolution.
C)convergent evolution.
D)pure chance.

Question 33

What is the function of endosperm?

A)it provides protection for the seed
B)it develops into the fruit
C)it provides nourishment for the developing embryo
D)it directs the pollen tube to the egg

Question 34

Which of the following will develop into the male gametophyte?

A)anther
B)microspore
C)carpel
D)ovary
E)ovule

Question 35

Meiosis results in the production of _______ haploid cells.

Question 36

You find a flower that is small,white,odorless,and with long filaments and copious pollen.This flower is most likely pollinated by

A)wind.
B)bees.
C)moths or flies.
D)hummingbirds.
E)rain splash.

Question 37

A unisexual flower lacking carpels would be called _____.

Question 38

In angiosperm double fertilization,one sperm nucleus fertilizes the egg and the other fertilizes the

A)polar nuclei.
B)antipodals.
C)endosperm.
D)integuments.
E)synergids.

Question 39

Enfleurage is a process used in the production of

A)honey.
B)alcoholic drinks.
C)molasses.
D)perfumes.

Question 40

During double fertilization one sperm unites with the _____ to form a zygote while the second sperm unites with the _____ to form the primary endosperm nucleus.

Question 41

A flower pattern of 3s or 6s indicates a monocot.

Question 42

The highly resistant outer pollen wall called the _____ allows the pollen grain to be identified in geological sediments.

Question 43

In the seventeenth century,a buying frenzy for exotic orchids resulted in an economic crisis for the Netherlands.

Question 44

The pollen producing parts of a flower are called anthers.

Question 45

Fruit formation without fertilization is known as ______.

Question 46

Fly pollinated flowers are usually pale in color and give off a delicate scent only in the evenings.

Question 47

Wind pollinated flowers usually have large showy petals.

Question 48

The stigma is that part of the carpel that receives pollen grains.