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Extra Support for Vocabulary and ConceptsName _____________________________________________
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:
12© Houghton Mifflin Harcourt Publishing Company
Extra Support for Vocabulary and ConceptsName _____________________________________________
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?
13© Houghton Mifflin Harcourt Publishing Company
These dots are groups of spores on the under side of a fern leaf.
Extra Support for Vocabulary and ConceptsName _____________________________________________
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
14© Houghton Mifflin Harcourt Publishing Company
Extra Support for Vocabulary and ConceptsName _____________________________________________
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
15© Houghton Mifflin Harcourt Publishing Company
Extra Support for Vocabulary and ConceptsName _____________________________________________
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?
.
.
2-The picture shows the stages in seed germination.
For what purpose does the root of the plant emerge before any other part?
.
.
16© Houghton Mifflin Harcourt Publishing Company