Ching Man Course Course for secondary school teachers on teaching science education KLA in the English medium Course date 16620142062014 Teaching plan Biology Mitotic cell division ID: 267911
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Teacher: Ma Ching ManCourse: Course for secondary school teachers on teaching science education KLA in the English mediumCourse date: 16/6/2014-20/6/2014Teaching plan: (Biology) Mitotic cell divisionTarget group: S4 students
Mitotic cell divisionSlide2
Cell growth
Cell division
Revision: Cell cycleSlide3
first growth phase
Cell cycle
G
1
new organelles
made, e.g.:
mitochondria
chloroplasts
proteins madeSlide4
synthesis phase
Cell cycle
S
DNA replicates Slide5
G
2
s
tores of energy
increase
cell grows to maximum size
second growth phase
Cell cycleSlide6
Cell divisionMitotic cell divisionMeiotic cell division
Cell divisionSlide7
Stage 2: cytoplasmic
division
Two stages in mitotic cell division
Stage 1: nuclear
division
Mitotic cell division
There are 4 phases in this stage.Slide8
1
Pro
phase
chromosome appears as two chromatids
nuclear membrane disintegrates
Mitotic cell division
Nuclear division
(
4 phases)
pro
- comes from
proto
- meaning
firstSlide9
What
forms do the chromosomes take?
Mitotic cell division
1
Pro
phaseSlide10
chromosomes line up in the middle
Mitotic cell division
2
Meta
phase
m
eta
- means
after
or
nextSlide11
Where are the
chromosomes located?
Mitotic cell division
2
Meta
phaseSlide12
chromatids separate and move to opposite poles
cytoplasm starts to divide
Mitotic cell division
3
Ana
phase
ana
- means
again
or
repeatedSlide13
What
happens
to the chromosomes?
Mitotic cell division
3
Ana
phaseSlide14
nuclear membranes form
Mitotic cell division
chromosomes uncoil to become chromatin
4
Telo
phase
telo
- comes from
telos
meaning
last
or
finalSlide15
Mitotic cell division
What
happens
to the chromosomes?
4
Telo
phaseSlide16
animal cells
The cell membrane constricts inwards, forming two genetically identical cells.
cell membrane
Cytoplasmic division
Mitotic cell divisionSlide17
plant cells
The cell plate, which
grows outwards and divides the cell
.
Mitotic cell divisionSlide18
Class activity: “Ice-bar stick” modelTaskUse the sticks to demonstrate and explain the stages and phases to your classmates.
Mitotic cell divisionSlide19
chromatids
chromosome
Class activity: “Ice-bar stick” model
ice
-bar
sticks
represent Slide20
Prophase
chromosome appears as two chromatids
nuclear membrane disintegratesSlide21
chromosomes line up in the middle
MetaphaseSlide22
sister chromatids separate and move to opposite poles
cytoplasm starts to divide
AnaphaseSlide23
chromosomes uncoil to become chromatin
nuclear membranes form
TelophaseSlide24
Video
Task
To identify the
stages and phases from the video.http://www.youtube.com/watch?v=aDAw2Zg4IgE&feature=relatedSlide25
cytoplasmic
division
nuclear
division
cell division
prophase
metaphase
anaphase
telophase
SummarySlide26
Observe the photomicrograph of cells in the onion root tip.Identify the stages and phases.
Exercise:
Examination
of different stages and phases of mitotic cell division Slide27
A
B
C
D
E
F
G
H
I
J
Onion root tip (L.S.)