Cells divide themselves to do 4 specific functions

4 Functions for Cell Division

• Repair cells

• Replace cells

• Reproduce cells

• Grow cells

Cell cycle

• this is the regular sequence of events in which the cell grows, prepares for division, and divides to form two daughter cells .

• After this cycle is complete, each daughter cells begin the cycle again

Process of Cell Cycle

• The cycle has 3 stages

• and has steps for each stage that need to take place before the next stage starts.

Stage 1: Interphase

• during this stage the cell grows, makes a copy of its DNA and prepares to divide into two cells.

• the three steps for this phase are

• 1. grow: cell grows to it full size and produces organelles for split

• 2. Replication: makes a copy of its DNA to pass on at the split.

• 3. Preparing for division: once DNA replicated produces what it needs to split in two

Stage 2: Mitosis

• once interphase ends the next stage is Mitosis: the cell's nucleus divides into two new nuclei and one set of DNA is distributed into each daughter cell.

• There are 4 steps that need to take place in this stage.

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4 steps During Mitosis

• 1. Prophase: DNA condenses into seperate chromosomes.

• 2. Metaphase: chromosomes line up along the center of the cell. Chromatids line up for each cell.

• 3. Anaphase: fibers connect to the centioles pull the chromatids apart into each side of the cell.

• 4. Telophase: chromatids are pulled to opposite ends of the cell, the nuclear membrane reforms around the DNA to create two new Nuclei.

Stage 3: Cytokinesis

• the final stage of cell cycle is Cytokinesis: this stage completes the process. The cell's cytoplasm divides distributing the organelles into each of the two daughter cells.

• The only step of this stage is to separate the two daughter cells from each other to create two separate daughter cells.