Deck 36: Reproduction and Development in Flowering Plants

Question 1

In the figure, what is item number 1?

A)the sepal
B)the ovule
C)the style
D)the receptacle

Answer 1

D

Question 2

In a flowering plant, which structure includes the ovary?

A)the stamen
B)the ovule
C)the calyx
D)the carpel

Answer 2

D

Question 3

Where does the male gametophyte form in flowering plants?

A)in a stamen
B)in a carpel
C)in a receptacle
D)in a calyx

Answer 3

A

Question 4

What is the term for the end of a reproductive shoot where a flower develops?

A)ovule
B)receptacle
C)calyx
D)filament

Question 5

In the figure, what is item number 3?

A)a filament
B)a stigma
C)an anther
D)a receptacle

Question 6

Where does the female gametophyte form in flowering plants?

A)in a stamen
B)in a carpel
C)in a corolla
D)in a receptacle

Question 7

In the figure, what is item number 2?

A)a sepal
B)an anther
C)a petal
D)an ovule

Question 8

In the figure, what is item number 4?

A)an anther
B)a sepal
C)a receptacle
D)an ovule

Question 9

Which of the following best describes an embryo in a seed after it has been fertilized?

A)It begins as a sporophyte and ends up as a gametophyte before germination.
B)It is usually a gametophyte but can be a sporophyte.
C)It is always a sporophyte.
D)It is always a gametophyte.

Question 10

What must be present in a flower in order for it to make seeds?

A)sepals
B)carpels
C)stamens and sepals
D)stamens and carpels

Question 11

Which are the male gametophytes in flowering plants?

A)sperm
B)anthers
C)pollen grains
D)stamens

Question 12

Which sentence best describes the general reproductive strategy of flowering plants?

A)They reproduce only sexually.
B)They mainly reproduce sexually, although many will reproduce asexually under certain circumstances.
C)They reproduce only asexually.
D)They mainly reproduce asexually, although many will reproduce sexually under certain circumstances.

Question 13

Where in a flowering plant would meiosis be expected to occur?

A)in trichomes
B)in leaves
C)in roots
D)in flowers

Question 14

What kinds of cells are produced by meiosis in flowering plants?

A)diploid sporophytes
B)haploid sporophytes
C)haploid gametophytes
D)diploid gametophytes

Question 15

How many cells are in the female gametophyte of a flowering plant?

A)4
B)6
C)7
D)8

Question 16

Which term refers to the landing platform for pollen in flowering plants?

A)the stigma
B)the filament
C)the style
D)the anther

Question 17

Which of the following is usually the female gametophyte in flowering plants?

A)a single ovary
B)the complete pistil
C)the shoot parts bearing female flowers
D)the seven cells embedded in floral tissues

Question 18

Which theory about the cause of colony collapse disorder has no evidence?

A)that pathogens are the cause
B)that interference from cellphone towers is the cause
C)that pests are the cause
D)that drought is the cause

Question 19

Which sentence best describes the relationship between gametophyte and sporophyte in flowering plants?

A)The gametophytes are smaller than the sporophytes, and are retained inside sporophyte for all or part of their lives.
B)The gametophytes are smaller than the sporophytes, and do not nourish themselves.
C)The gametophytes and sporophytes are roughly equal in size, and both nourish themselves.
D)The gametophytes are usually larger than the sporophytes, but both gametophytes and sporophytes nourish themselves.

Question 20

Where is an anther typically found in a flower?

A)at the tip of a filament
B)at the tip of a carpel
C)at the tip of an ovule
D)at the tip of a calyx

Question 21

In the figure, what is item number 7?

A)a filament
B)a style
C)a stigma
D)an ovule

Question 22

Which structures make up the male reproductive whorl of a flower?

A)the sepals
B)the carpels
C)the stamens
D)the receptacles

Question 23

In the figure, what is item number 6?

A)a petal
B)a sepal
C)a receptacle
D)a style

Question 24

Which term refers to a flower that lacks either stamens or carpels?

A)perfect
B)imperfect
C)incomplete
D)complete

Question 25

In the figure, what is item number 5?

A)an ovule
B)a stigma
C)a receptacle
D)an anther

Question 26

Which phrase best describes the micropyle?

A)a passageway through the style for sperm
B)the inner seed coat
C)the mature male gametophyte
D)a small opening at one end of an ovule

Question 27

What would you expect to find in the part of an embryo sac farthest away from the micropyle?

A)the synergids
B)the seed
C)the antipodal cells
D)the pollen tube

Question 28

Which of the following is the female gametophyte in flowering plants?

A)the seed
B)the embryo sac
C)the megasporocyte
D)the ovule

Question 29

Which parts of a flower are typically the most leaflike?

A)the receptacles
B)the carpels
C)the sepals
D)the petals

Question 30

In flowering plants, how many sperm cells are typically produced from each microspore mother cell?

A)1
B)2
C)4
D)8

Question 31

What is a plant species in which the plant can make either only male or only female flowers called, and what flowers does it always have?

A)monoecious; imperfect
B)dioecious; perfect
C)dioecious; imperfect
D)monoecious; perfect

Question 32

Which structures make up the innermost whorl of a flower?

A)the receptacles
B)the carpels
C)the sepals
D)the stamens

Question 33

Which of the following give a flower its colour?

A)petals
B)sepals
C)anthers
D)stigma

Question 34

Which phrase describes the events that occur in the production of a pollen grain from a microspore mother cell?

A)Only meiosis occurs.
B)First mitosis occurs, and then meiosis, followed by mitosis.
C)First meiosis occurs, and then mitosis.
D)First mitosis occurs, and then meiosis.

Question 35

Which parts of a flower are most likely to have distinctive colours, patterning, and shapes for attracting pollinators?

A)the petals
B)the receptacles
C)the sepals
D)the stamens

Question 36

Which of the following is carpel composed of?

A)stigma, anther, and filament
B)stigma, style, and ovary
C)anther, filament, and ovary
D)style, stigma, and filament

Question 37

Along with the egg, what would you expect to find in the part of an embryo sac next to the micropyle?

A)the seed
B)the central cell
C)the synergids
D)the antipodal cells

Question 38

In the figure, what is item number 8?

A)a sepal
B)an anther
C)a style
D)an ovule

Question 39

Which structures make up the outermost whorl of a flower?

A)the receptacles
B)the carpels
C)the petals
D)the sepals

Question 40

What makes up the female reproductive whorl of a flower?

A)the carpels
B)the receptacles
C)the stamens
D)the petals

Question 41

Which structure is formed as a result of double fertilization?

A)the hypocotyl
B)the endosperm
C)the cotyledon
D)the seed coat

Question 42

What occurs after a pollen tube penetrates an ovule?

A)Other pollen tubes are attracted to that ovule.
B)That pollen tube continues on to another ovule.
C)Other pollen tubes are prevented from gaining access to that ovule.
D)Other pollen tubes can penetrate that ovule more easily.

Question 43

Which term refers to the embryonic root?

A)radicle
B)epicotyl
C)cotyledon
D)hypocotyl

Question 44

Which type of reproduction involves the growth of a new plant on the margin of a leaf that eventually falls to the ground and grows independently?

A)grafting
B)fragmentation
C)apomixes
D)somaclonal section

Question 45

What is the purpose of self-incompatibility in flowers?

A)It prevents both self-fertilization and self-pollination.
B)It prevents self-pollination but not self-fertilization.
C)It prevents self-fertilization but not self-pollination.
D)It prevents self-fertilization and occasionally prevents self-pollination.

Question 46

Which term refers to a fruit that develops from a single ovary in a single flower?

A)simple fruit
B)accessory fruit
C)multiple fruit
D)aggregate fruit

Question 47

What is the term for the process of asexual reproduction in which a diploid embryo develops from an unfertilized egg or from diploid cells in ovule tissue?

A)grafting
B)somaclonal section
C)apomixis
D)fragmentation

Question 48

What structure releases the chemical cues that help guide a developing pollen tube toward an ovule?

A)the egg
B)the central cell
C)the antipodal cell
D)the synergid

Question 49

In flowering plants, how many egg cells are typically produced from each megaspore mother cell?

A)1
B)2
C)3
D)4

Question 50

Which term refers to a seed leaf?

A)hypocotyl
B)cotyledon
C)suspensor
D)endosperm

Question 51

Some fully differentiated plant cells are totipotent. What does this mean?

A)They will grow roots if they touch the ground.
B)They have the potential to form a whole, fully functional plant.
C)They can fertilize an egg.
D)They can undergo meiosis.

Question 52

Which term refers to a fruit that develops from tissues of the receptacle as well as from the ovary?

A)aggregate fruit
B)accessory fruit
C)multiple fruit
D)simple fruit

Question 53

Which sequence represents the most typical order of events in seed germination?

A)shoot cells divide and elongate ? root cells divide and elongate ? seed coat splits ? water imbibition
B)seed coat splits ? water imbibition ? root cells divide and elongate ? shoot cells divide and elongate
C)water imbibition ? seed coat splits ? root cells divide and elongate ? shoot cells divide and elongate
D)water imbibition ? root cells divide and elongate ? seed coat splits ? shoot cells divide and elongate

Question 54

Which term refers to a fruit that develops from several ovaries in multiple flowers?

A)simple fruit
B)multiple fruit
C)aggregate fruit
D)accessory fruit

Question 55

What happens when pollen from one species lands on the stigma of a flower from another species?

A)The pollen tube typically forms and grows to the ovary, but then stops.
B)The pollen tube typically forms, but the sperm are killed.
C)The pollen tube typically does not develop.
D)The pollen tube typically forms, but the sperm cannot penetrate the egg.

Question 56

What is the main mechanism by which fleshy fruits aid seed dispersal?

A)by being buried by animals
B)by falling directly under the parent plant
C)by being eaten by animals
D)by floating away from the parent plant

Question 57

Which term refers to a fruit that develops from several ovaries in a single flower?

A)accessory fruit
B)aggregate fruit
C)simple fruit
D)multiple fruit

Question 58

Which statement best reflects the current understanding of pollen tube elongation?

A)It is not even known if pollen tube growth uses chemical signals or is completely random.
B)Pollen tube elongation will occur as long as the pistil provides moisture and energy.
C)While it is known that chemical cues from female tissues help guide pollen tube growth, the identity of these chemicals is not known.
D)Nearly all of the details of the chemical interactions between the pollen tube and pistil tissue are known.

Question 59

What does the fruit wall, or pericarp, develop from?

A)the ovary wall
B)the endosperm
C)the petals
D)the receptacle

Question 60

For a typical flowering plant, how is the first cell of the triploid (3n) endosperm formed from?

A)from one sperm fused with two antipodal cells
B)from two sperm fused with a synergid
C)from one sperm fused with the central cell
D)from two sperm fused with the egg

Question 61

Describe several ways that fruits can aid seed dispersal.

Question 62

Match each flower part with its description.
a.parts that enclose and protect all other flower parts before the flower opens
b.male reproductive parts
c.female reproductive parts
d.often showy parts that function in attracting bees or other animal pollinators
petals

Question 63

Describe the process of double fertilization in flowering plants.

Question 64

Match each flower part with its description.
a.parts that enclose and protect all other flower parts before the flower opens
b.male reproductive parts
c.female reproductive parts
d.often showy parts that function in attracting bees or other animal pollinators
carpels

Question 65

When is the root-shoot axis established in the flowering plant Arabidopsis?

A)within hours after the seed germinates
B)shortly after the eight-cell embryo stage
C)during the torpedo stage of embryonic development
D)by the first cell division of the embryo

Question 66

Match each flower part with its description.
a.parts that enclose and protect all other flower parts before the flower opens
b.male reproductive parts
c.female reproductive parts
d.often showy parts that function in attracting bees or other animal pollinators
sepals

Question 67

Match each flower part with its description.
a.parts that enclose and protect all other flower parts before the flower opens
b.male reproductive parts
c.female reproductive parts
d.often showy parts that function in attracting bees or other animal pollinators
stamens

Question 68

Which term refers to growing useful mutants that develop from callus culture?

A)grafting
B)protoplast fusion
C)fragmentation
D)somatic embryogenesis

Question 69

What governs the course of the vegetative growth throughout the life of a plant?

A)Genes that govern plant development switch on in response only to changing internal environment.
B)Genes that govern plant development switch on in response only to changing external environment.
C)Genes that govern plant development switch on and off in response to changing external environment.
D)Genes that govern plant development switch on and off in response to changing internal environment.

Question 70

Which of the following provides a powerful importance of the plant Arabidopsis?

A)its entire genome that has been sequenced
B)its reproductive cycle
C)its ability to be cloned
D)its alternation of generations