08.D BIO Regulating Cell Growth (PART D)
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8 Terms
Internal Regulation of Cell Growth
Cyclins
Stop and Go signals
Cyclins
A protein that helps regulate the cell cycle
Stop and Go Signals
Certain criteria must be met for a cell to proceed through the process of cell division; for example, if the centromere is not properly attached to spindle microtubules a molecular signal is sent that delays anaphase until they are correctly attached
Cancer
A disorder in which some of the body's own cells lose the ability to control growth
Metastasis
An abnormal mass of cells that is fast growing and spreads beyond their original site in the body; cancerous
Benign tumor
An abnormal mass of cells that is slower growing and remains at its original site in the body; noncancerous tumor
Malignant tumor
An abnormal tissue mass that can spread into neighboring tissue and to other parts of the body; a cancerous tumor
Tumor
A mass of rapidly dividing cells that can damage surrounding tissue
Note 
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