WorksheetsPlant Structure, Function, and Reproduction
Total questions: 50
Worksheet time: 25mins
Parts of a mature gametophyte produce gametes through a process of
Meiosis
Alternation of generations
Mitosis
Fertilization
Seedless plants disperse to new areas using...
Cones
Gametes
Capsules
Spores
When a sperm of a conifer fertilizes an egg, it forms a(n)
Flagellum
Zygote
Ovule
Seed
In the figure, in what are structure are the small grains falling out of the flower produced?
The sepals behind the petals
The stigma of the carpel
The anthers on the stamens
The filament of the pistil
Colorful fragrant flowers are most likely pollinated by...
Animals
Wind
Spores
Water
A coconut fruit can function in dispersing coconut seeds by...
Floating in the water
being carried by the wind
Sticking to animal’s fur
Being grown by humans
During dormancy, what plant stage is protected from extreme conditions by the seed coat?
The seedling
The embryo
The mature plant
The radicle
At what point is a young plant called a seedling?
When the embryo breaks out of the seed coat
When the radicle breaks through the seed coat
When sugars move to the embryo
When photosynthesis begins
What would happen during a plant’s life cycle if meiosis did not occur?
The number of chromosomes would not change
The number of chromosomes would be cut in half every cycle
The number of chromosomes would double every cycle
The number of chromosomes would triple every cycle
Why do mosses require a wet environment to reproduce
The sporangia can form only in water
The gametophyte needs to be in water to produce gametes
The spores must be dispersed by water
The sperm must swim thru water to reach an egg
Pine trees each have two different kinds of cones. These are
Haploid and diploid
Male and female
Homozygous and heterozygous
1n and 2n
How would a plant with red flowers most likely be affected if you removed the red petals?
It would be less able to attract animal pollinators
It would be less able to pollinate using the wind
It would not be able to grow as tall
It would not be able to produce pollen
Where would the small grains falling out of the flower need to land for fertilization to take place?
On the sepal
On the stigma
On the stamen
On the anther
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 to find a mate
The seeds of blueberry plants are often dispersed after passing thru the digestive system of an animal that eat blueberries. What additional benefits to blueberry seeds experience after being dispersed this way?
Having blueberry flesh for nutrients
Having animal feces as fertilizer
Having deep soil covering them
Having no other predators
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 to find a mate
Why do seeds being stored for future use have to be kept dry
Water will cause the radicle to rot
Water interferes with the actions of enzymes
Water will prevent the embryo from growing
Water can cause the seeds to germinate
In scientific terms, a fruit is a flower’s
Mature ovary
Sweet-tasting structure
Brightly colored structure
Enlarged seed
Which leaf adaptations occur to minimize water loss in both deserts and cold dry climates?
Plump leaves that store water
Large and broad leaves
Needles and spines
Compound and double compound leaves
What is the function of the plasmodesmata?
They support and protect plants
They allow cells to share materials
They store starch, oils, and water
They carry out photosynthesis
Primary growth increases a plant’s
Flowers
Branches
Length
Thickness
What happens to the guard cells when a plant is losing water from transpiration faster than it is gaining water at its roots?
They deflate and open the stomata
They inflate and open the stomata
They deflate and close the stomata
They inflate and close the stomata
A plant’s ground tissue is found...
in its outer layer
Only in its leaves
Above the ground
Throughout the plant
Transpiration lowers the pressure in the leaf xylem, creating a vacuum that...
Forces water out of the leaves
Pulls water upward
Attracts water to the xylem wall
Moves water into the phloem
Which type of tissues makes up most of the inside of the plant?
Dermal
Ground
Vascular
Phloem
How would most plants first be affected if they did not lose water by transpiration?
They would be unable to carry out photosynthesis
They would be unable to lift water to their top branches
They would be unable to move sugars thru the phloem
They would be unable to form sclerenchyma cells
What are the protective cells at the very tip of the root called?
Meristem
Root Cap
Vascular Cylinder
Root Hairs
Roots absorb water partly through tiny extensions of dermal cells called
Lateral meristems
Apical meristems
Vascular cylinders
Root hairs
What does each ring represent in the cross section of a tree trunk?
One winter of growth
One year of growth
Five years of growth
Ten years of growth
The blade of a leaf is connected to the stem by a thin stalk called a...
Mesophyll
Culticle
Bud
Petiole
The upper surfaces of leaves are used mainly for
Light gathering
Gas exhange
Collecting water
Protection from predators
What is the function of the cone cells at the very tip of the root tip?
To produce new growth by dividing
To protect the growing part of the root
To absorb water from the soil
To grow lateral meristems
Primary growth increases a plant’s
Length
branches
Flowers
Thickness
The thin stalk that attaches a leaf to a stem is called a
Blade
Cuticle
Bud
Petiole
A single leaf can be identified by
The location of the auxiliary bud
The number of blades
The vein pattern
The leaf margin
In double fertilization, one sperm fertilizes an egg, and the other forms a...
Haploid cell
Diploid cell
Triploid cell
Polar cell
Strawberries reproduce mainly by seeding out runners, or
Rhizomes
Stolons
Tubers
Bulbs
Plant growers create new plants from parts of a parent plant using the process of...
Sexual reproduction
Vegetative propagation
Stolon running
Rhizomes budding
Which type of plant hormone produces dramatic increases in the size of a plant?
Gibberelins
Ethylene
Auxins
Cytokinins
Cutting off the growing tip of a plan reduces the auxin in the primary stem and encourages growth
Toward light
of side branches
In the fruit harvest
Beyond normal size
A root growing downward and a shoot growing upward are both examples of...
Phototropism
Thigmatropism
Photoperiodism
Gravitropism
What would happen during a plants life cycle if meiosis did not occur?
The number of chromosomes would not change
The number of chromosomes would cut in half every cycle
The number of chromosomes would double every cycle
The number of chromosomes would triple every cycle
How would a germinating seed likely be affected if it were grown in an environment with no gravity?
The root and shoot would be unable to grow
The root and shoot would grow in random directions
The root and shoot would grow away from light
The root and shoot would only grow in the dark
WHy are there holes in the bags containing apples?
To prevent ethylene buildup that would make them rot
To prevent hormones from being produces
To prevent auxin build up that would make their stems grow
To prevent cytokinin buildup which would make them grow larger
Branches from a tree with tasty apples were grafted onto a tree that grows well at low temps. Which characteristic will the resulting offspring likely have?
Poor tasting fruits
Tasty fruit
No fruit
Seedless fruit
What would be the best way to prevent a plant that produces rhizomes from spreading?
Give it lots of water
Plant it in a small container
Put it in a shady spot
Do not fertilize it
In scientific terms, a fruit is a flower’s...
Mature ovary
Sweet tasting structure
Brightly colored structure
Enlarged seed
What response results in a plant that blooms the same time each year?
Thigmatropism
Cytokinins
Gibberellins
Photoperiodism
The figure shows auxins inside the cell of a plant stem. From which direction is light coming?
The right
The top
The left
The borrom
The figure shows auxin buildup inside of a plant stem. Where in the stem have auxins built up the most?
On the right
On the left
In the middle
On the lit side
