AP BIOLOGY

Detailed explanation-1: -Cancer: How does it kill? The term cancer refers to a group of related conditions in which bodily cells start to divide and grow uncontrollably, often spreading into surrounding tissue. Cancer kills by growing into key organs, nerves, or blood vessels and interfering with and impairing their function.

Detailed explanation-2: -Gene mutations in cancer cells interfere with the normal instructions in a cell and can cause it to grow out of control or not die when it should. A cancer can continue to grow because cancer cells act differently than normal cells. Cancer cells are different from normal cells because they: divide out of control.

Detailed explanation-3: -The loss of cell-cell adhesion capacity allows malignant tumor cells to dissociate from the primary tumor mass and changes in cell-matrix interaction enable the cells to invade the surrounding stroma; the process of invasion.

Detailed explanation-4: -Metastasis, from the Greek methistanai, meaning to move to another place, describes the ability of cancer cells to penetrate into lymphatic and blood vessels, circulate through these systems and invade normal tissues elsewhere in the body.