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WorksheetsPlant Structure and Function
Total questions: 29
Worksheet time: 15mins
Terrestrial plants have stomata on the surface of their leaves. Stomata are surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma. Which of the following best explains how the structure of the leaf is used in processes that occur in plants?
Water enters the plant through the surface of the leaf for transpiration
Gases for photosynthesis are exchanged through the surface of the leaf.
Energy for cellular reproduction is absorbed through the surface of the leaf.
Carbon dioxide enters the plant through the surface of the leaf for cell reproduction.
What is the main function of leaves?
Leaves provide support for growth and a place to store food.
Leaves provide a place for photosynthesis to occur.
Leaves absorb water and minerals and transport nutrients to the stem.
Leaves absorb water and minerals and transport nutrients to the stem.
Which structure in the leaf controls the opening and closing of the stoma?
cuticle
epidermis
guard cell
spongy mesophyll
What is the main purpose of seeds in plants that have them?
a. To protect and distribute the zygote. b. To entice animals to eat the plant.
c. To be fertilized by other plants. d. To store water for the mother plant.
To protect and distribute the zygote.
To entice animals to eat the plant.
To be fertilized by other plants.
To store water for the mother plant.
How does the stomata contribute to the survival of the plant?
It allows the intake of gases necessary for photosynthesis.
It allows the intake of minerals necessary for plant growth.
It allows the intake of sunlight necessary for ATP production.
It allows the intake of sugars necessary for plant reproduction.
Plants that produce seeds
do not need cuticles on their leaves
transport seeds in vascular tissue
can live in dry environments
do not need vascular tissue
What characteristic do all gymnosperms share?
A. They live only in hot, dry climates. B. They produce naked seeds.
C. They are trees. D. They grow cones.
They live only in hot, dry climates.
They produce naked seeds.
They are trees.
They grow cones.
The adaptation that helps plants retain water is the
vascular tissue
zygote
leaf
cuticle
What happens in phloem?
Water is transported up.
Food (carbohydrates) is transported down.
Spores are transported up.
Seeds are transported down.
Angiosperms that live for more than two years are called
annuals.
biennials.
perennials.
monocots.
What is pollination?
the development of pollen grains
the development of mature cones
the transfer of pollen from male to female reproductive structures
the joining of sperm and egg cells in an ovule
Nonvascular plants differ from vascular plants because
all vascular plants have spores and all nonvascular plants have seeds.
nonvascular plants have xylem and phloem whereas vascular do not.
vascular plants have xylem and phloem whereas nonvascular do not.
nonvascular plants have cones and vascular plants have flowers.
Flowers are
structures for photosynthesis.
vascular tissue structures.
structures for anchoring plants to the ground.
structures for reproduction.
Which factor helps you tell the difference between a monocot and a dicot?
number of pollen grains
number of seed leaves
number of leaves
number of eggs
A plant species lives in an area with limited sunlight. Which physiological adaptation would be most useful to the plant?
colorful flowers
large leaves
deep roots
thin cuticle
In seed plants, the entire male gametophyte is contained in a
Pollen grain
Seed
Flower
Cone
Which statement describes the role of flowers in plant survival?
Flowers can absorb carbon dioxide for sugar production.
Flowers produce oxygen through cellular respiration.
Flowers contain cells that carry out photosynthesis.
Flowers contain cells that produce gametes.
Which of the following is NOT a part of a seed?
the endosperm
the seed coat
the cotyledon
the fruit
What is a pistil?
a male structure which produces pollen
a female structure which collects pollen and passes it to the ovary
a modified leaf used for protection of the flower
decorative structures which attract pollinators
What is a sepal?
a male structure which produces pollen
a female structure which collects pollen and passes it to the ovary
a modified leaf used for protection of the flower
decorative structures which attract pollinators
What is a stamen?
a male structure which produces pollen
a female structure which collects pollen and passes it to the ovary
a modified leaf used for protection of the flower
decorative structures which attract pollinators
What is a petal?
a male structure which produces pollen
a female structure which collects pollen and passes it to the ovary
a modified leaf used for protection of the flower
decorative structures which attract pollinators
The energy that powers photosynthesis comes from
water.
chemicals.
oxygen.
the sun.
What part of a flower becomes fruit?
ovary
petal
stamen
pistil
The reproductive structures of a gymnosperm are called
pollen.
ovules.
cones.
sperm cells.
Which structure on a flower produces pollen?
anther
sepal
filament
stigma
What is the male reproductive structure called on a flower?
pistil
stamen
sepal
flower
What is the female reproductive structure called on a flower?
pistil
stamen
sepal
flower
The rise of water in a tall plant depends on capillary action and
osmosis.
evaporation.
nutrient transport.
transpirational pull (transpiration).
