Date: January 19, 2016
Aim #47: What are the stages of mitosis?
Do Now: Warm-Up Notebook
Date
Title of Activity
Page #
1/19
Intro to Cell Division
81
HW:
1) Read Chapter 10-2 (Cell Division) pages 244-249 and
Complete Cornell Notes Outline due Wednesday
2) Quarterly Exam Tuesday 1/26 (periods 1 & 7) and
Wednesday 1/27 (period 5)
3) Plant Packet due Monday, February 1st!!! (follow calendar
of deadlines)
Date: January 20, 2016
Aim #47: What are the stages of mitosis?
Do Now: Warm-Up Notebook
Date
Title of Activity
1/20
Intro to Cell Division
Page #
81
HW:
1) Read Chapter 10-2 (Cell Division) pages 244-249 and Complete
Cornell Notes Outline due Wednesday
2) Quarterly Exam Tuesday 1/26 (periods 1 & 7) and Wednesday 1/27
(period 5)
–
Review Sessions Monday 1/25 7:30AM & 3:15PM
3) Plant Packet due Monday, February 1st!!! (follow calendar of
deadlines)
Aim #47: What are the stages of mitosis?
Biology is the only subject in which
multiplication is the same thing as division…
1) What is mitosis?
Chromosomes
Spindle Fibers
Mitosis is the process that divides the cell’s nucleus into two,
each with a complete set of genetic material from the parent cell.
What are the phases of the Cell
Cycle?
G1- Cells increase in size and
synthesize new proteins and
organelles.
Cell
Cell
What are the phases of the Cell Cycle?
S Phase- DNA (chromosomes)
are replicated.
Centromere
Chromatid
What are the phases of the Cell Cycle?
G2 Phase- Many of the molecules
and organelles for cell division are
produced.
G1, S, and G2 Phases are
collectively known as:
Interphase
Centriole
What are the phases of the Cell Cycle?
M Phase- the cells undergo cell
division.
What does the “M” stands for?
Mitosis
The dance of the
Chromosomes
Stages of Mitosis:
Prophase:
1) The chromosomes become
visible. (Condensation)
2) The centrioles separate and
Spindle fibers begin to form.
Centriole
Nuclear
Membrane
3) The nuclear membrane breaks
down.
Spindle Fibers
Stages of Mitosis:
Metaphase:
1) The chromosomes line up
across the center of the cell.
2) Each chromosome is connected to
a spindle fiber at the centromere.
Stages of Mitosis:
Anaphase:
1) The spindle fibers separate
the chromatids into individual
chromosomes and they
are moved apart.
Stages of Mitosis:
Telophase:
1) The chromosomes gather at opposite
ends of the cell.
2) Two new nuclear membranes form.
3) The chromosomes lose their distinct
shapes.
Cytokinesis:
The cytoplasm pinches and two cells
are formed.
What is the end result of Mitosis?
46X
Parent
+
46X
Daughter Cell
Chromosome Number?
The same number of
chromosomes is maintained
from one generation to the
next.
46X
Daughter Cell
Is the genetic material of the
daughter cells identical to the
parent?
YES
Mitosis Phases
Prophase Metaphase
Cytokinesis
Anaphase
Telophase
Which phase are these cells in?
Prophase
Anaphase
What phase are these cells in?
Telophase
Metaphase
9) Animal vs. Plant Cell Mitosis
In plants, a Cell Plate forms
across the middle of the cell.
Comparing animal and plant Cytokinesis
ANIMAL MITOSIS
PLANT MITOSIS
Brain Pop
http://www.brainpop.com/science/cellularlifeandgenetics/mit
osis/
Let’s Practice
Interphase
Prophase
Metaphase
(Middle)
Anaphase
(Away)
Telophase
(Two)