Question

Cancer cells are more easily damaged by radiation than normal cells because they are
(A) Starved by nutrition
(B) Undergoing rapid division
(C) Different in structure
(D) Non-dividing

Answer 1

Hint: Cancer cells are cells that grow and divide abnormally, are poorly differentiated, and have abnormal membranes, cytoskeletal proteins, and morphology. The abnormality in cells can be increasing with a slow transition from normal cells to benign tumors to malignant tumors.

Complete answer:
Radiation is more effective at killing cells that are quickly dividing. Cancer cells are most vulnerable to radiation for two reasons:
- They divide more rapidly than other normal cells.
- They do not repair this damage as successfully as normal cells.
Radiation prevents the cancer cells from growing and rapidly dividing and leads to cell death. Hence, Cancer cells are more easily damaged by radiation therapy, because they undergo rapid division. Thus, option (B) is correct .

> Option (A) is incorrect because Cancer cells are not starved by nutrition. They use glucose as their primary source of energy.
> Option (C) is incorrect because there is no difference between the structure of cancer cells and normal cells.
> Option (D) is also incorrect because cancer cells are actively dividing.

Additional information:
Radiation therapy is used to fight many different types of cancer. It is also used in combination with other therapies such as surgery or chemotherapy. To kill cancer cells, radiation therapy uses high-power x-rays, particles, or radioactive seeds.

Note: Cancer cells are cells that divide harshly, form solid tumors or flooding the blood with abnormal cells. Cell division is a normal process that is used by the body for growth and repair. A parent cell divides to form two daughter cells, and these daughter cells are used to form new tissue or to replace cells that have died because of aging or damage. Healthy cells stop dividing when there is no need for more daughter cells, but cancer cells continue to produce their copies. They are also able to spread from one part of the body to another part in a process known as metastasis.