cancer

Question 1

how is a tumour formed

Answer 1

it is formed when lots of cells grow in an uncontrolled or abnormal way

Question 2

what is the cell cycle

Answer 2

when the cells in your body divide on a regular basis in a set sequence,

Question 3

what are benign tumours like

Answer 3

life threatening, due to pressure build up , spreads around the body, lives longer and spreads quicker, it can release small cells into the blood stream

Question 4

what are malignant tumours like

Answer 4

they do not spread around the body, they grow quickly and large, their growth is contained in one place usually the cell membrane

Question 5

causes of cancer

Answer 5

genetic risk factors e.g breast cancer
exposure to radiation e.g uv can cause skin cancer
most are caused by genetic mutations (change in genetic mutations)

Question 6

2 ways of treating cancer

Answer 6

chemotherapy = kills spreading cancer cells so they dont return
radiotherapy = slows growth or damages cancer cells dna