FINALS–Ch. 22 Plant Growth, Reproduction, and Response – Flashcards
Unlock all answers in this set
Unlock answersquestion
Seedless plants disperse to new areas using
a. cones
b. gametes
c. capsules
d. spores
answer
spores
question
Colorful fragrant flowers are most likely pollinated by
animals
wind
spores
water
answer
animals
question
In double fertilization, one sperm unites with polar nuclei, and the other
produces filaments
produces anthers
fertilizes the egg
none of the above
answer
fertilizes the egg
question
A coconut fruit can function in dispersing coconut seeds by
floating in water
being carried by the wind
sticking to animals' fur
being grown by humans
answer
floating in water
question
Parts of a mature gametophyte produce gametes through the process of
meisosis
alternation of generations
mitosis
fertilization
answer
mitosis
question
During dormancy, what plant stage is protected from extreme conditions by the seed coat?
the seedling
the embryo
the mature plant
the radicle
answer
the embryo
question
At what point is a young plant called a seedling?
A. when the embryo breaks out of the seed coat
B. when the radicle breaks through the seed coat
C. when sugars more to the embryo
D. when photosynthesis begins
answer
when photosynthesis begins
question
Strawberries reproduce mainly by sending out runners or
a. rhizomes
b. stolons
c. tubers
d. bulbs
answer
stolons
question
What would happen during a plant's life cycle if meiosis did not occur
a. the number of chromosomes would not change
b. the number of chromosomes would be cut in half very cycle
c. the number of chromosomes would double every cycle.
d. the number of chromosomes would triple every cycle
answer
the number of chromosomes would double every cycle.
question
Pine trees each have 2 different kinds of cones. These are
haploid and diploid
male and female
homozygous and heterozygous
1n and 2n
answer
male and female
question
How do some animal pollinators benefit from helping to pollinate plants?
they use the petals to make their shelters
the plants protect them from predators
they gain pollen or nectar to eat
the pollen they collect helps them find a mate
answer
they gain pollen or nectar to eat
question
The seeds of blueberry plants are often dispersed afar passing through the digestive system of an animal that eats blueberries. What additional benefit do blueberry seeds experience after being dispersed in this way?
a. having blueberry flesh for nutrients
b. having animal feces as fertilizer
c. having deep soil covering them
d. having no other predators
answer
having animal feces as fertilizer
question
Why do seeds being stored for future use have to be kept dry?
a. water will cause the radicle to rot
b. water interferes with the actions of enzymes
c. water will prevent the embryo from growing
d. water can cause the seeds to germinate
answer
water can cause the seeds to germinate
question
Branches from a tree with tasty apples were grafted onto a tree that grows well at low temperatures. Which characteristic will the resulting propagated tree most likely have?
a. poor tasting fruit
b. tasty fruit
c. no fruit
d. seedless fruit
answer
tasty fruit
question
In scientific terms, a fruit is a flower's
a. mature ovary
b. sweet-tasting structure
c. brightly colored structure
d. enlarged seed
answer
a mature ovary
question
What are the male gametophytes called in a pine life cycle?
a. pollen grains
b. cones
c. ovules
d. scales
answer
pollen grains
question
How is a pine sporophyte similar to a moss sporophyte?
a. both are larger than the gametophyte
b. both arise from meiosis
c. both produce gametes
d. both are diploid
answer
both are diploid
question
Where in a flower are pollen grains formed/
a. in the stigma
b. in the sepals
c. in the anthers
d. in the carpels
answer
in the anthers
question
Why might wind-pollinatd flowers be small and inconspicuous?
a. they don't need large petals to attract animal pollinators
b. wind can more easily deposit pollen in small flowers
c. because gametes are not produced in the flowers, the flowers can be small
d. there is no space for large petals because large stamens are needed
answer
they don't need large petals to attract animal pollinators
question
Which of the following is not a method of seed dispersal?
a. wind
b. gravity
c. animals
d. water
answer
gravity
question
Why does a seed need an endosperm?
a. The endosperm provides energy for water uptake by the embryo
b. the growing embryo cannot yet make its own food by photosynthesis
c. the endosperm will form the emerging plumule
d. the endosperm produces chloroplasts so the seedling can photosynthesize.
answer
the growing embryo cannot yet make its own food by photosynthesis
question
Which plant part cannot produce new plants by asexual reproduction?
a. stem
b. leaf
c. root
d. flower
answer
flower
question
Which is not an underground stem adapted for vegetative reproduction?
a. rhizome
b. stolon
c. bulb
d. tuber
answer
stolon
question
sporophyte
answer
a spore producing plant
question
gametophyte
answer
a gamete producing plant
question
sepal
answer
a modified leaf that protects the developing flower
question
stamen
answer
male reproductive structure of a flower
question
carpel
answer
female flower structure with three parts
question
endosperm
answer
stored food supply for a seed
question
dormancy
answer
a state in which the embryo has stopped growing
question
germination
answer
begins the growth of an embryo into a seedling
question
regeneration
answer
plants grow a new individual from a fragment of the parent
question
vegetative reproduction
answer
asexual reproduction in plants involving stolons and rhizomes
question
embryo
answer
earliest stage of a fertilized egg
question
ovary
answer
part of the carpel that produces a gametophyte
question
pollination
answer
occurs when a pollen grain lands on a stigma
question
vegetative propagation
answer
humans use cuttings and grafting to form new plants
question
A 2-phase life cycle found in plants is called ________ of __________
answer
alternation of generations
question
Identify the following parts of the flower
carpel
stamen
petal
anther
style
ovule
stigma
filament
ovary
sepal
answer
...