CELL CYCLE Cell cycle Cell Division for Growth

CELL CYCLE

Cell cycle Cell Division for Growth, Repair, Replacement, or Asexual Reproduction

Interphase All the cells DNA is found in the cell nucleus in the form of chromatin

Mitosis When cells prepare to divide, the chromosomes appear, divide and separate

Cytokinesis Two new cells form with identical chromosomes to the original cell

Here are the main cell parts involved in the cell cycle Centrioles/ Centrosomes Cell Membrane Nucleolus Chromatin network Nuclear Envelope

The cell cycle can be divided into different stages: • Interphase • Mitosis Prophase Metaphase Anaphase Telophase • Cytokinesis

Interphase prepares the cell for division • G 1 – growth • G 0 – Non-dividing cell • S – DNA replication • G 2 – growth

Interphase This is the phase in between the cell dividing. DNA replication occurs

Remember the sequence for Mitosis is PMAT Prophase • P Metaphase • M Anaphase • A Telophase • T

MITOSIS – Prophase and Metaphase Chromosomes condense and spindle fibers form to attache to centromeres Chromosomes line up SINGLE FILE at the Equator

MITOSIS – Anaphase Double stranded Chromosomes split to form TWO single stranded chromosomes

MITOSIS – Anaphase Single stranded chromosomes move to opposite poles

Cytokinesis Original Cell Divides to form TWO new cells with the SAME number of chromosomes