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Mitosis - cell division
Today's lesson
Dagopening
What is mitosis?
Why is mitosis important?
What are the steps to mitosis?
Mevrouw Velthoven - Bovenbouw biologie
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Slide 1:
Tekstslide
Biologie
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Leerjaar 3
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Today's lesson
Dagopening
What is mitosis?
Why is mitosis important?
What are the steps to mitosis?
Mevrouw Velthoven - Bovenbouw biologie
Slide 1 - Tekstslide
Slide 2 - Tekstslide
What are the three reasons why cells remain small?
A
Large cells have difficulty diffusing nutrients rapidly enough
B
As cells grow, their ratio of surface area to volume decreases
C
Transportation of wastes become a problem for larger cells
D
All of the above
Slide 3 - Quizvraag
www.sciencefocus.com
Slide 4 - Link
www.businessinsider.com
Slide 5 - Link
In growth of tissues cells divide/ double. What needs to be done with the DNA if a cell divides?
Slide 6 - Open vraag
Slide 7 - Video
Mitosis
One cell will split in two exact copies
One mother cell will become 2 daughter cells.
Slide 8 - Tekstslide
Prophase
Chromosomes condense: each has two chromatids
Nuclear membrane starts breaking down
Spindle apparatus appears
Slide 9 - Tekstslide
Metaphase
Centromeres lined up on the equator
Each chromatid attached to a spindle fibre
Slide 10 - Tekstslide
Anaphase
Separation of the sister chromatids
Sister chromatids move to opposite poles, now called chromosomes
Slide 11 - Tekstslide
Telophase
Chromosomes have reached poles
Nuclear membranes start forming
Chromosomes uncoil, become less visible
Slide 12 - Tekstslide
Cytokinesis
Actual splitting of cytoplasm
Slide 13 - Tekstslide
What was the lesson about?
1. What is mitosis?
2. Why is it important?
3. What are the different phases?
Slide 14 - Tekstslide
I still have questions about...
Slide 15 - Open vraag
Slide 16 - Video
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