1. Sec Notes
Cell Cycle Continued

2. Internal and external factors regulate the cell cycle.
Growth Factor: a broad group of proteins that stimulate the cell cycle.   (Set by genes)
Apoptosis: a programmed cell death.
Cancer: uncontrolled cell division/ a mistake in the cell cycle.
Malignant: a tumor that has cancerous cells which can break away.

3. Benign: non cancerous cells remain clustered together.
carcinogen is a cancer-causing agent that creates mutations in a cell

4. Cancer Treatment
Chemotherapy: Uses drugs that travel throughout the body to kill actively dividing cells.
Radiation: Uses radiation to kill cancer cells and shrink tumors in a specific location.

5. Asexual Reproduction
Asexual reproduction: the creation of offspring from a single parent cell.
Binary Fission: A single-celled organism divides into two parts.

6. Multicellular Life
Tissues: a group of cells working together to perform a similar function.
Organ: are made up tissues
Organ System: Organs carrying out similar functions
Cell differentiation: unspecialized cells become developed into mature forms and functions.
Stem cells: A cell that can stay the same or develop into a specialized cell.

7. Types of Stem Cells Totipotent: Can lead to any type of stem cell.
Pluripotent: Can lead to all cells except totipotent.
Multipotent: Can lead to closely related cells.