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CHAPTER
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Cell Division
the BIG idea
Organisms grow, reproduce, and maintain themselves through cell
division.
3.1 Cell division occurs in all organisms.
3.2 Cell division is part of the cell cycle.
3.3 Both sexual and asexual reproduction involve cell division.
CHAPTER OUTLINE
CHAPTER RESOURCES
3.1
KEY CONCEPT
CHAPTER HOME
Cell division occurs in all organisms.
CALIFORNIA
Content Standards
VOCABULARY
DNA
chromosome
7.1.c Students know the nucleus is the repository for
genetic information in plant and animal cells.
7.2.e Students know DNA (deoxyribonucleic acid) is
the genetic material of living organisms and is located
in the chromosomes of each cell.
CHAPTER
RESOURCES
SECTION
OUTLINE
3.1
CHAPTER HOME
KEY CONCEPT
Cell division occurs in all organisms.
• In unicellular organisms the function of cell division is
reproduction. One cell splits into two!
• In multicellular organisms functions of cell division
include growth, development, and repair.
break in skin
new cells pushed
up to fill cut
wound is healed
dividing cells
new cell layers
cells stop dividing
VOCABULARY
DNA
chromosome
CHAPTER
RESOURCES
SECTION
OUTLINE
3.1
KEY CONCEPT
CHAPTER HOME
Cell division occurs in all organisms.
I. Cell division occurs in all organisms.
VOCABULARY
DNA
A. Cell division is involved in many functions.
chromosome
B. The genetic material of eukaryotic cells is
organized in chromosomes.
1. DNA
2. Chromosomes
C. Cell division is involved in growth, development,
and repair.
1. Growth
2. Development
3. Repair
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
3.2
KEY CONCEPT
CHAPTER HOME
Cell division is part of the cell cycle.
CALIFORNIA
Content Standards
VOCABULARY
cell cycle
interphase
7.1.c Students know the nucleus is the repository for
genetic information in plant and animal cells.
7.1.e Students know cells divide to increase their
numbers through a process of mitosis, which results in
two daughter cells with identical sets of chromosomes.
mitosis
cytokinesis
CHAPTER
RESOURCES
SECTION
OUTLINE
3.2
CHAPTER HOME
KEY CONCEPT
Cell division is part of the cell cycle.
The cell cycle has two main phases, interphase and
mitosis. Most of the life cycle of a cell is spent in
interphase. During mitosis, the nucleus divides.
VOCABULARY
cell cycle
interphase
mitosis
cell grows and carries
out normal activities;
organelles duplicate
cytokinesis
DNA replicates
cell grows
and prepares
for mitosis
CHAPTER
RESOURCES
SECTION
OUTLINE
3.2
KEY CONCEPT
CHAPTER HOME
Cell division is part of the cell cycle.
II. Cell division is part of the cell cycle.
VOCABULARY
cell cycle
A. The cell cycle includes interphase and cell
division.
1. Interphase
2. Cell Division Phase
interphase
mitosis
cytokinesis
B. Cell division produces two genetically identical
cells.
1. Steps of Mitosis
2. Division of the Cytoplasm
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
3.2
CHAPTER HOME
KEY CONCEPT
Cell division is part of the cell cycle.
The cell cycle has two main phases, interphase and
mitosis. Most of the life cycle of a cell is spent in
interphase. During mitosis, cells divide.
VOCABULARY
cell cycle
interphase
mitosis
VISUALIZATION
VISUALIZATION
Match images of cells
dividing with the
different stages of cell
division.
CLASSZONE.COM
cytokinesis
Watch the process of mitosis in
action.
CHAPTER
RESOURCES
SECTION
OUTLINE
3.3
KEY CONCEPT
CHAPTER HOME
Both sexual and asexual reproduction involve
cell division.
CALIFORNIA
Content Standards
7.2.a Students know the differences between the life
cycles and reproduction methods of sexual and
asexual organisms.
VOCABULARY
asexual
reproduction
binary fission
regeneration
CHAPTER
RESOURCES
SECTION
OUTLINE
3.3
CHAPTER HOME
KEY CONCEPT
Both sexual and asexual reproduction
involve cell division.
Some organisms reproduce asexually. Both asexual
and sexual reproduction involve cell division.
VOCABULARY
asexual
reproduction
binary fission
Asexual and Sexual Reproduction
Asexual Reproduction
Sexual Reproduction
One parent organism
Two parent organisms
Offspring’s genes are
identical to parent’s genes
Offspring’s genes are combined from
two parents
Can reproduce quickly
Usually reproduce more slowly
regeneration
CHAPTER
RESOURCES
SECTION
OUTLINE
3.3
KEY CONCEPT
CHAPTER HOME
Both sexual and asexual reproduction
involve cell division.
III. Both sexual and asexual reproduction involve cell
division.
A. Asexual reproduction involves one parent.
1. Cell Division in Unicellular Organisms
VOCABULARY
asexual
reproduction
binary fission
regeneration
2. Budding
3. Regeneration
4. Asexual Reproduction and Health
B. Sexual reproduction involves two parent
organisms.
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
CHAPTER HOME
Image Gallery
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VISUALIZATION
VISUALIZATION
Match images of cells
dividing with the
different stages of cell
division.
CLASSZONE.COM
Watch the process of mitosis in
action.
CHAPTER HOME
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