Cancer

Question 1

Benign tumours

Answer 1

> Grow very slowly

> Cells are often well differentiated

> Cells produce adhesion molecules that make them stick together so they remain within the tissue from which they arrive

> Tend to have localised effects on the body

Question 2

Malignant tumours

Answer 2

> Grow rapidly

> Cells become unspecialised

> Cells do not produce adhesion molecules and so they tend to spread to other regions of the body, a process called metastasis, forming secondary tumours

> Often have systematic (whole body) effects such as weight loss & fatigue