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Anatomy & Physiology. Cancer Questions with Accurate Answers
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Anatomy & Physiology. Cancer
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Anatomy & Physiology. Cancercancer - answer group of diseases caused by uncontrolled cell division; can develop in
any body tissue
where does cancer come from? - answer a mutation in the DNA that codes for proteins
that regulate the cell cycle
tumor - answer mass of cancerous cells
what occurs physiologically? - answer a tumor forms
how is the cell cycle impacted? - answer in cancerous cells, the protein that regulates
cell cycle has a mutation which causes the cell to skip checkpoints and rapidly enter
mitosis. not only does the cell divide continuously, but it also does so at a faster rate;
the cell cycle is disrupted
which genes regulate the cell cycle? – answer proto-oncogenes and tumor suppressor
genes
carcinogens - answerfactors that increase the likelihood of causing cancer mutations
examples of carcinogens - answerchemicals, radiation, viruses (HPV), genetics
(inheritance)
in situ - answerterm used to refer to when the tumor remains in the tissue of origin
malignant - answerthe tumer begins to invade other tissues
when do tumors become life threatening? - answerwhen they interrupt the processes of
the tissues and organs needed for survival
proto-oncogenes - answerturn cell division on
tumor suppressor genes - answerturns cell division off
how does a tumor form? - answer1. mutation disrupts cell cycle and rapidly enter
mitosis phase
2. all descendants have the same mutation
3. mass of cells form a tumor
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