Cancer

Question 1

What causes a tumour?

Answer 1

Changes in genes cause uncontrolled growth and mitosis

Question 2

What are the two types of tumours?

Answer 2

Benign and malignant

Question 3

What are benign tumours?

Answer 3

Growths of abnormal cells in one area

Question 4

What are the features of benign tumours?

Answer 4

They do not invade other parts of the body and they stay in one place
These tumours are usually contained within a membrane

Question 5

How are malignant tumours different?

Answer 5

They invade neighbouring tissues and move into the blood stream

Question 6

What is a malignant tumour cell classed as?

Answer 6

A cancer

Question 7

What happens after malignant cells enter the bloodstream?

Answer 7

They for new malignant tumours around the body called secondary tumours

Question 8

Give 3 examples of cancers linked to genetics?

Answer 8

Some types of breast cancer
Prostate cancer
Cancer of the large intestine

Question 9

Give 3 examples of cancers linked to lifestyle?

Answer 9

Lung cancer - Smoking
Skin cancer - Ultraviolet light
Mouth and throat cancer- Alcohol

Question 10

How does radon cause cancer

Answer 10

Radon is a radioactive gas which causes lungs cancer
Radon releases ionizing radiation which damages DNA in our cells
This can cause our cells to undergo uncontrolled division, causing cancer