presentation of mitosis

1. MITOSIS: CELL
DIVISION

2. MITOSIS
•Mitosis is a type of cell division that
results in two daughter cells each
having the same number and kind
of chromosomes as the parent
nucleus, typical of ordinary tissue
growth.

3. WHY IS MITOSIS IMPORTANT?
• FOR GROWTH IN ORGANISMS
• TO REPAIR DAMAGED CELLS/TISSUES
• TO REPLACE DEAD CELLS/TISSUES
• FOR REPRODUCTION IN SOME SIMPLE ORGANISMS
SUCH AS BACTERIA

4. STAGES OF MITOSIS
•INTERPHASE
•PROPHASE
•METAPHASE
•ANAPHASE
•TELOPHASE

5. INTERPHASE
• Interphase- It is the period
between two cell divisions
during which the chromosome
material doubles.The nucleus
of the cell contains chromatin,
material from which
chromosomes are formed,
during the cell
division.Centrosomes are
observed in the cytoplasm.
They are special structures
involved in cell division and https://pin.it/1Gjyqnl

6. PROPHASE
• Prophase: This is the first
phase of mitosis. -The
chromatin material forms
chromosomes in the
nucleus and they become
visible.-The nuclear
membrane disappears.-
Each chromosome is made
of two chromatids joined by
a centromere.-The
centrosome transforms into
two asters which separate https://pin.it/1Gjyqnl

7. METAPHASE
• Metaphase - The
chromosomes are fixed by
their centromeres on the
fibers.- The chromosomes
are lined up along the
metaphase plate (equatorial
plate) of the cell.
https://pin.it/1Gjyqnl

8. ANAPHASE
• Anaphase -The
centromeres divide into two
and split.-The two
chromatids of each
chromosome also separate
and move to the opposite
poles of the cell.
https://pin.it/1Gjyqnl

9. TELOPHASE
• Telophase -The fibers
(spindles) disappear. -
Asters turn back into
centrosome. -The nuclear
membrane forms again.-
The two daughter cells have
the same number of
chromosomes as the
mother cell.-At the end,
chromosomes go back to
chromatin stage.
https://pin.it/1Gjyqnl

10. MITOSIS OVERVIEW
• https://pin.it/5nxZfjH

11. CELL CYCLE
https://pin.it/2lWtSRt

12. • Deleña, R. (2015) Cell reproduction: mitosis. Available from slideshare at
https://www.slideshare.net/Pipoytoshi?utm_campaign=profiletracking&utm_medium=sssite&utm_sou
rce=ssslideview .(Accessed 25 August 2021)
• Farah, E. (2015) Cell division(mitosis). Available from slide share
https://www.slideshare.net/eldofar?utm_campaign=profiletracking&utm_medium=sssite&utm_source
=ssslideview . (Accessed 25 August 2021).
• Schoolpowerpoint(2013) Introduction to mitosis. Available from slideshare
https://www.slideshare.net/SchoolPowerPoint?utm_campaign=profiletracking&utm_medium=sssite&u
tm_source=ssslideview. (Accessed 25 August 2021)
• University of Johannesburg (2018) mitosis. Available from slideshare
https://www.slideshare.net/ThandekaProsperity?utm_campaign=profiletracking&utm_medium=sssite
&utm_source=ssslideview . (Accessed 25 August 2021)
REFERENCE