Get Cell Division Cancer And Chemotherapy Worksheet Answers

Below are the main types of chemotherapy: Alkylating agents. Antimetabolites. Anti-tumor antibiotics. Topoisomerase inhibitors. Mitotic inhibitors. Plant alkaloids.

During mitosis one cell divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells. If not corrected in time, mistakes made during mitosis can result in changes in the DNA that can potentially lead to genetic disorders.

Chemotherapy not only kills fast-growing cancer cells, but also kills or slows the growth of healthy cells that grow and divide quickly. Examples are cells that line your mouth and intestines and those that cause your hair to grow.

The fast-growing normal cells most likely to be affected by chemotherapy are blood cells forming in the bone marrow, and cells in the digestive tract, reproductive system, and hair follicles. Common side effects of chemotherapy include fatigue, nausea, diarrhea, mouth sores, hair loss, and anemia.

Mitosis occurs during development, creating more cells that allow an organism to grow, but it also takes place throughout the lifetime of an organism, as means to replace old cells with new ones.

Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death.

Because cancer cells divide much more often than most normal cells, chemotherapy is much more likely to kill them. Some drugs kill dividing cells by damaging the part of the cell's control centre that makes it divide. Other drugs interrupt the chemical processes involved in cell division.

The "normal" cells most commonly affected by chemotherapy are the blood cells, the cells in the mouth, stomach and bowel, and the hair follicles; resulting in low blood counts, mouth sores, nausea, diarrhea, and/or hair loss. Different drugs may affect different parts of the body.

In chemotherapy, cancer patients may be given one or several drugs from the available anti-cancer drugs. Since different chemical agents damage cancer cells in different ways and at different phases in the cell cycle, a combination of drugs is often employed to increase the cancerous cell-killing effectiveness.