The cell cycle is the series of events that cause a cell to divide into two daughter cells. It includes DNA replication, organelle duplication, and cell division. The cell cycle consists of interphase and the M phase. Interphase includes the G1, S, and G2 phases where the cell grows and duplicates its DNA. The M phase is mitosis where the cell divides into two identical daughter cells followed by cytokinesis where the cell cytoplasm is partitioned. Mitosis consists of prophase, metaphase, anaphase and telophase where the chromosomes align and separate. The document provides details on each phase of the cell cycle.

1. BY k.Saraswathi

2. What is cell cycle?
• The cell cycle, or cell-division cycle, is
the series of events that take place in
a cell that cause it to divide into two
daughter cells. These events include the
duplication of its DNA (DNA replication)
and some of its organelles, and
subsequently the partitioning of its
cytoplasm and other components into
two daughter cells in a process
called cell division.

3. PHASES OF THE CELL CYCLE
M PHASEINTERPHASE
G1 phase
S phase
G2 phase
Mitosis
Cytokinesis

4. PHASES OF
MITOSIS
Mitosis
 PROPHASE
 METAPHASE
 TELOPHASE
 ANAPHASE
CYTOKINESIS

6. INTERPHASE

7. INTERPHASE

8. Chromosomes
Chromosome are stored in the
nucleus.
Every cells that contains
a nucleus will have chromosomes

9. G1 PHASE
 Period of rapid growth.
 New proteins and organelles
are produced.
• Chromosomes are
unwound (chromatin)
 preparing for
DNA synthesis (s phase)

10. G ZERO G0
 Cell leaves cell
cycle
 Can be temporary
or permanent
 But not
necessarily dead
 B eg: neurons

11. S PHASE
• The s phase of a cell cycle
occurs during interphase, before
mitosis or meiosis, and is
responsible for the synthesis or
replication of DNA. In this way,
the genetic material of a cell is
doubled before it enters mitosis
or meiosis, allowing there to be
enough DNA to be split into
daughter cells

12. DNA MUTATION DISTRUPT THE CELL
CYCLE
Mutation may be
caused by:
 RADIATION
 CHEMICALS
 POLUTANTS
 SMOKING

13. G2 PHASE
• Gap 2 (G2): During the gap
between DNA synthesis and
mitosis, the cell will continue to
grow and produce new proteins.
... Mitosis or
M Phase: Cell growth and
protein production stop at this
stage in the cell cycle.
• Cells prepares for
division organelles replicate

14. MITOSIS : NEUCLER DIVISION

15. METAPHASE

16. ANAPHASE

17. TELOPHASE

18. cytokinesis

19. Thank You