Which statement about cancer is true?

The statement that cancer cells arise from normal cells is accurate because cancer typically emerges when normal cells undergo genetic mutations that disrupt their normal regulation of growth and division. These mutations can result from a variety of factors, including environmental influences, lifestyle choices, and inherited genetic predispositions. As these normal cells acquire more mutations, they can eventually develop into cancerous cells, which continue to proliferate uncontrollably.

Understanding this process is crucial in the field of nursing and healthcare, as it shapes how cancer is diagnosed, treated, and managed. It also underscores the importance of early detection strategies and lifestyle modifications aimed at reducing risk, as the transition from normal to cancerous cells is often a gradual process that may take years.

The other statements do not accurately reflect the nature of cancer. While it is true that some cancers are more prevalent in older adults due to the accumulation of mutations over time, cancer is not exclusive to this age group. Additionally, while stem cells can be involved in the development of various cancers, it is not accurate to say that all cancer cells arise from stem cells. Furthermore, cancer cells do share certain characteristics with normal cells, particularly in their fundamental biological functions, despite deviating in ways that enable malignancy.