cancer cells Flashcards
1
Q
cancer is
A
an uncontrolled growth of cells
2
Q
cell division in normal cells is controlled by
A
cell cycle regulators
and
external chemical signals
3
Q
these cancerous cells don’t respond to signals therefore producing
A
a tumour
4
Q
benign tumour
A
warts
5
Q
malignant tumour
A
when cells break off and enter the circulatory system therefore spreading the cancer around the body
6
Q
most cancers originate in a cell that has undergone
A
a succession of mutations, why cancer increases with age
7
Q
risk is also increased by
A
uv radiation
pollution
smoking
8
Q
cells that have a higher frequency of division are more likely to become cancerous eg
A
skin
lung
bowel
