Chapter 19.1: Characteristics of Cancer Cells Flashcards
What is metastasis?
o The cancerous cells can then travel through the bloodstream to colonize distant tissues in a process called metastasis
What is contact inhibition?
o Most cells will stop dividing when they come into physical contact with other cells; this property is called contact inhibition
What is apoptosis?
o Most cells are instructed to die through a process called apoptosis (or programmed cell death) that is activated when the genomic DNA becomes too damaged
How do cancer cells acquire a potential for immortality?
o Most cancer cells express telomerase which regenerates new copies of the repeating sequences at telomeres, allowing cancer cell telomeres to remain approximately the same length over many cycles of cell division
Define angiogenesis
a method some tumors use to evade restriction of their growth by secreting substances that cause blood vessels to grow toward them
What is a method some tumors use to evade restriction of their growth by secreting substances that cause blood vessels to grow toward them?
angiogenesis
