LN 15 Cancer Cell Cycle The Cell Cycle
- Slides: 10
LN #15 Cancer & Cell Cycle
The Cell Cycle • Interphase – Period of cell growth and DNA replication • Mitosis – Period of cell division • Prophase, metaphase, anaphase, telophase • Cytokinesis – Cytoplasm is divided
metaphase telophase cytokinesis anaphase
What part of the cell cycle is it? cytokinesis interphase metaphase telophase 1 2 3 4 prophase 5 anaphase prophase 6 7
What controls the normal cell cycle? • Enzymes – Some begin the cell cycle – Others control the cycle at every phase • What are enzymes? – A type of protein that speeds up chemical reactions
Video Notes:
Abnormal Cell Cycle: Cancer • Cancer is the uncontrolled growth and division of cells. • Cancer cells can kill an organism by crowding out normal cells, resulting in the loss of tissue function.
What Causes Cancer? • The changes that occur in the regulation of cell growth and division of cancer cells are due to mutations. • Various environmental factors can affect the occurrence of cancer cells. • Genetics • Problems with enzyme production • Some Viruses • Environmental factors • Cigarette smoke, • air and water pollution, • UV exposure
Summary 1. 2. 3. 4. 5. 6. What are the parts of the cell cycle? What are the parts of mitosis? What controls the cell cycle? What is cancer? How cancer cells kill an organism? What causes cancer?
