1.What is Cancer? Un controlled mitotic cell divisions result in the formation of Tumors, it is known as Cancer. There are two kinds of tumours : 1.harmful.

1.What is Cancer?

Un controlled mitotic cell divisions result in the formation ofTumors, it is known as Cancer.

There are two kinds of tumours : 1.harmful tumors-Malignant Tumour and 2.un harmful tumors-Benign Tumour.

2. How many types of tumors are there? What are they?

3.How many types of Cancer are there? Give examples.

Based on the tissue of organs effected by cancer there are three types:1)Carcinoma: Epithelial Tissue. ex. Lungs, breasts, pancreas, stomach2)Sarcoma: ex. Muscular tissue ,lymph glands.3)Leukemia: Blood ex: WBC

4.What are Carcinogenic agents? How many types are there?Give examples.

The agents that cause the cancer are called “Carcinogenic agents”.There Are 3 types of carcinogenic agents. viz. i)Physical agents ex. X-rays ii)Chemical agents ex. Aflotoxins .DDT, Tobacco and iii)Biological agents. Ex. Viruses.

5.What are the parts commonly effected by cancer in woman?

In woman the most commonly effected parts are uterus and Breast.

6.What are the parts commonly effected by cancer in man?

In man the most commonly effected parts are lungs, mouth and Throat.

Lung cancer

7.How to prevent Cancer?

Preventive measures of Cancer:1.Avoid smoking.2.Avoid chewing tobacco, Gutka.3.Avoid liquor.4.Take balanced diet.5.Do physical exercise regularly.

Throat cancer

8.What is the treatment of cancer?

1.Removal of effected organ by operation. (Surgery)2.Killing of cells by X-Rays,ال-Rays.( radiation therapy)3.By using medicines. (chemotherapy)

Prepared by :S.Karunakar Reddy PGT BiologyAPR SCHOOL(BC-G)KALWAKURTHYMahabubnagar Dist.ANDHRA PRADESH