Cancer

Question 1

How is cancer caused?

Answer 1

Caused by viruses, toxic agents, unhealthy behaviour ,genteics and radiation.

Question 2

How is cancer spread?

Answer 2

-The genes in the nucules mutates DNA and leads to abnormal cell growth.
-This leads to a new tumor growth.
-The tumor produces more red blood cells to grow.

Question 3

When do cancer cells become dangerous?

Answer 3

When the tumour metastersizes to new parts of the body and infects other healthy cells.

Question 4

What is cancer?

Answer 4

When genes become damaged or mutated and leads to the growth of abnormal cells (a tumour)

Question 5

What are the three ways cancer can be treated?

Answer 5

Surgery, raidiotherapy and chemotherapy

Question 6

Why do cancer therapies have side effects?

Answer 6

The therapies can effect and kill cancer cells but also the healthy cells.

Question 7

How do cancer treatments effect the cell cycle?

Answer 7

-Preventing DNA replication during G1 and S phase.
-Preventing mitosis by interfering with spindle formation or contraction during mitosis.
-Deliberating damaging DNA so the cell destroys itself.