Plant Reproduction Key Concept Builder LESSON 3 Key Concept

Name
Date
Class
Key Concept Builder
LESSON 3
Plant Reproduction
Key Concept What is the alternation of generations in plants?
fertilization
sperm
diploid
zygote
diploid
plant
haploid
spores
meiosis
egg
haploid
plant
Directions: Use the diagram to answer each question on the lines provided.
1. What happens during fertilization?
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
2. What forms as a result of fertilization?
3. What happens in certain cells in the reproductive structures of a diploid plant?
4. What are the daughter cells produced from the haploid structure called?
5. How do haploid spores grow to form the haploid generation of a plant?
6. What do certain reproductive cells of the haploid generation produce?
7. When does the diploid generation in plants begin?
8. When does the haploid generation in plants begin?
9. Does the diagram show sexual or asexual reproduction? How do you know?
Plant Processes and Reproduction
55
Name
Date
Class
Key Concept Builder
LESSON 3
Plant Reproduction
Key Concept How do seedless plants reproduce?
Directions: One each blank, write the term or phrase that correctly completes each sentence.
1. The first plants to inhabit Earth most likely were
.
2. Two examples of seedless plants found on Earth today are
and
.
3. The life cycle of a fern is an example of
generations.
4. The diploid generation of ferns looks like green
5. In ferns, haploid
.
are produced by the diploid generation.
6. Haploid plants produce
and
.
7. Reproduction in ferns and mosses includes the alternation
of
.
8. Like ferns, mosses are another example of a(n)
plant.
10. Haploid plants grow by
plants.
and
11. Haploid spores have
.
structures and
structures.
12. Male structures produce
.
13. Female structures produce
.
14. When eggs and sperm unite, they form the
15. Mosses and ferns are usually found in
.
environments.
16. For sperm produced by mosses and ferns to reach a(n)
, they must swim through a film of water.
17. The process during which a nucleus and its contents divide is
called
.
18. Seedless plants are plants that grow from
instead of from
seeds.
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Plant Processes and Reproduction
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
9. Moss found on rocks, bark, and soil are
Name
Date
Class
Key Concept Builder
LESSON 3
Plant Reproduction
Key Concept How do seed plants reproduce?
Directions: On the line before each statement, write T if the statement is true or F is the statement is false. If the
statement is false, change the underlined word(s) to make it true. Write your changes on the lines provided.
1. Most land plants that cover Earth are seedless plants.
2. Seed plants include flowerless seed plants and haploid seed plants.
3. The haploid generation is within the diploid tissue in a seed plant.
4. Haploid sperm and haploid eggs join during fertilization.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
5. Pollen grains form from tissue in the male reproductive structure of seed plants.
6. Pollen grains have soft, protective coverings.
7. Eggs are produced from pollen cells.
8. Pollen cells are transported by wind, animals, gravity, and water currents.
9. Only a few pollen grains are produced by male reproductive structures.
10. Pollination occurs when pollen grains land on a female reproductive structure
of the same species.
11. For pollination to occur, the sperm and eggs must be of the same
species.
12. Sperm enter the embryo following pollination.
Plant Processes and Reproduction
57
Name
Date
Class
Key Concept Builder
LESSON 3
Plant Reproduction
Key Concept How do seed plants reproduce?
Directions: Answer each question or respond to each statement in the space provided.
Gymnosperm
Angiosperm
2. What is an angiosperm?
3. What can be said about the seeds of
gymnosperms?
4. Why do many animals depend on
angiosperms for food?
5. Draw a diagram showing reproduction in
flowerless seed plants.
6. Draw a diagram showing the male and female
parts of an angiosperm.
7. Describe the life cycle of a gymnosperm.
8. Describe the life cycle of an angiosperm.
58
Plant Processes and Reproduction
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
1. What is a gymnosperm?