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How Do Plants Reproduce?Science WordsLife cycle [LYF SY•kuhl] all the stages

a living thing goes through during its life

Seed Seedling Adult plant Flower then fruit

Germination [jer•mihn•AY•shuhn] the process of a seed sprouting

-Pollination [pah•luh•NAY•shuhn] the process of pollen moving from a male plant part to a female plant part

Plants reproduce through pollination; wind, water, and animals help make pollination possible.

Bees and butterflies carry pollen from plant to plant as they look for food.

Reproduce [ree•pruh•DOOS] make new living things like themselves

-Flowers and cones are reproductive structures that make seeds.

Cone [KOHN] the parts of some seed plants

where reproduction occurs.

Flowers:

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Flower [FLOW•er] the part of some plants that enables them to reproduce

Most plants produce seeds in flowers.

Petals are the outer parts of a flower.

T he stamen consists of a thin stalk topped by a saclike anther, which produces pollen.

The pistil has a rounded base contains eggs.

Spore [SPAWR] a cell that can grow into a new plant when the conditions are right

-Wind carries the spores to places with light and water where they may grow into

new plants.

Choose the best answer:

1-An empress tree is a flowering plant. This tree’s flowers have blue and violet markings. What is the main role of the colored markings on the flowers?

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These dots are groups of spores on the under side of a fern leaf.

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A-to protect the plant from the sun

B-to produce pollen for reproduction

C-to attract insects to carry pollen

C-to disperse seeds to other parts of the local environment

2-The cedar tree is a nonflowering plant. The orange blossom tree is a flowering plant. Both trees have similar life cycles. What is the order of events in the life cycles of both plants?

A-seed, pollination, seed dispersal, fertilization

B-pollination, seed, seed dispersal, fertilization

C-fertilization, pollination, seed, seed dispersal

D-pollination, fertilization, seed, seed dispersal

3-Which of these is what a plant does that makes more plants like itself?

a-germinate b-grow

c-reproduce d-spread

4-Some trees make this kind of plant part.

Which statement tells what this plant part does?

a-It takes in light. b-It takes in water.

c-It makes the seeds. d-It makes the flowers.

5-Which part of a plant helps to spread seeds when it is eaten by an animal?

a-flower b-fruit

c-leaf d-stem

6-Which of these is a plant reproductive part that can grow into a new plant?

a-frond b-fruit

c-pollen d-spore

7-What do plants not need to grow?

a-observation b-soil

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c-sunlight d-water

8-Which is the best name for the living thing in this picture?

a-adult plant b-young plant

c-mature seed d-germinating seed

9-Which of the following plants is an example of a nonvascular plant?

A Dogwood BMossC Ginkgo D Pine tree

10-Which of these is a main function of this plant’s roots?A Making seeds B Producing pollenCAbsorbing water from soil D Storing chlorophyll

11-What do ferns (seedless plants) have that apple trees do not have?A Stems B RootsC Flowers D Spores _

12-The part of a plant cell that gives the cell its green color is the —A nucleus B cytoplasmC vacuole D chloroplast

13- This fern plant has rows of little black dots on the back of the leaves. These little dots are

not harmful. They hold millions of tiny reproductive cells called —

A pistils B anthers

C spores _ D chloroplasts

14-Why is photosynthesis important for plants?F It collects sunlight which is used to make food for plants. _G It gets rid of plant waste products.H It changes plant sugar into stronger chemicals.J It helps attract insects to plant flowers.

15- What do plants take in through their root systems?A Light B WaterC Carbon dioxide D Oxygen

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16-Why do some flowers have bright colored petals?A It collects sunlight which is used to make food for plants. _B It gets rid of plant waste products.C It changes plant sugar into stronger chemicals.DIt helps attract insects to plant flowers.

Answer the following:

1-Why are honey bees very important in the plant reproduction?

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2-The picture shows the stages in seed germination.

For what purpose does the root of the plant emerge before any other part?

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