Cell CycleIPMATC

Cell Cycle

3 Parts:– Interphase– Mitosis

Prophase Metaphase Anaphase Telophase

– Cytokinesis

Stage 1: Interphase

Growth: cell doubles in size and makes the structures needed for division

DNA replication: the cell doubles the amount of DNA in the nucleus

Preparation for Division: continues to make structures needed for division

Stage 2: Mitosis

One copy of the DNA is passed on to each of the daughter cells

Occurs in 4 parts:

prophase, metaphase,

anaphase, and telophase

2A:Prophase

Chromatin coils and condenses and forms chromosomes, spindle fibers begin to form, nuclear membrane breaks down

Chromatid: a single rod of genetic material in a chromosome

Centromere: holds the two chromatids together to form a chromosome

2B: Metaphase

Chromosomes line up at the center of the cell on the spindle fibers

Spindle fibers are attached to centromeres

2C: Anaphase

Chromatids separate to opposite ends of the cell

Cell becomes stretched

Telophase

Chromosomes begin to lose their shape

Nuclear membrane begins to reform

3: Cytokinesis

Cell membrane pinches around the middle and 1 “parent” cell is split into 2 “daughter” cells.

Each daughter cell has an identical number of chromosomes, and about the same amount of organelles and cytoplasm.

Mitosis Video