Cancers

Question 1

cancers are examples of what

Answer 1

non-communicable diseases

Question 2

how is cancer caused

Answer 2

by cells that continue to divide by mitosis in an uncontrolled way
-they then continue to grow in an uncontrolled way

Question 3

name two different types of tumour

Answer 3

benign
malignant

Question 4

Explain how benign tumours are

Answer 4

-the tumour grows slowly until there is no more space for any more cells
-the tumour stays in the same place (in situ)
-it doesnt invade other tissues
–they are not usually life threatening

Question 5

Explain how malignant tumours are

Answer 5

-these are cancerous and grow quickly
-they invade neighbouring tissues
-they spreadto different parts of the body in the blood

Question 6

State the risk factors for cancer

Answer 6

Smoking (increase of risk of lung, mouth, bowel cancer)
Obesity (increase of bowel, liver, kidney cancer)
Common viruses (increase of liver cancer)
UV exposure (increase of skin cancer)