Cell Division and The Cell Cycle - Note Presentation

It allows organisms to grow and repair tissues.

It helps organisms to move faster.

It enables organisms to produce energy.

It allows organisms to breathe underwater.

Prokaryotes divide by mitosis, eukaryotes by binary fission

Prokaryotes divide by binary fission, eukaryotes by mitosis

Both use binary fission

Both use mitosis

G1, S, G2

Mitosis, Cytokinesis, G1

S, Mitosis, G2

G1, Cytokinesis, S

Gap 1 (G1)

Synthesis (S)

Gap 2 (G2)

Mitosis

Gap 1 (G1)

Synthesis (S)

Gap 2 (G2)

Mitotic Phase (M)

The cell cycle is regulated by carbohydrates.

Regulatory proteins ensure the cell completes the previous phase before moving on.

Cells always move from one phase to the next without any regulation.

Cell cycle regulation is not necessary for cell division.

To check if DNA has been replicated properly

To ensure all chromosomes are aligned at the mitotic plate

To decide whether the cell should divide before entering S phase

To split the cytoplasm during cytokinesis

They divide much faster than normal cells and can damage tissues and organs.

They help repair damaged DNA.

They protect the body from radiation.

They stop dividing when nutrients are low.