How are tumor cells different from normal cells. Apex?

Answer 1

Tumor cells differ from normal cells primarily in their growth and behavior; they exhibit uncontrolled proliferation, evading the regulatory mechanisms that typically keep cell division in check. Unlike normal cells, which undergo apoptosis (programmed cell death) when damaged or dysfunctional, tumor cells often develop resistance to this process, allowing them to survive and proliferate despite genetic abnormalities. Additionally, tumor cells can invade surrounding tissues and metastasize to distant sites, a characteristic not observed in healthy cells. Furthermore, they may undergo metabolic changes and express different surface markers compared to normal cells.