Download Cell division occurs in all organisms.

CHAPTER
NEW CHAPTER
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
3.1
CHAPTER HOME
KEY CONCEPT
Cell division occurs in all organisms.
• In unicellular organisms functions of cell division
include reproduction
• 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
SECTION
OUTLINE
3.2
CHAPTER HOME
KEY CONCEPT
Cell division is part of a 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
cell grows and carries
out normal activities;
organelles duplicate
cytokinesis
DNA replicates
and
chromosomes
duplicate
cell grows
and prepares
for mitosis
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
Comparing Asexual and Sexual Reproduction
regeneration
Asexual Reproduction
Sexual Reproduction
Cell Division
Cell division and other processes
One parent organism
Two parent organisms
Rate of reproduction is rapid
Rate of reproduction is slower
than rate for asexual reproduction
Offspring identical to parents
Offspring have genetic information
from two parents
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
KEY CONCEPT
SUMMARY
3.2
KEY CONCEPT
CHAPTER HOME
Cell division is part of a cell cycle.
II. Cell division is part of a 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
KEY CONCEPT
SUMMARY
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.
KEY CONCEPT
SUMMARY