What is a carcinogen

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Vocabulary

air quality index (AQI)

A measure of certain pollutants in the air in a given location.

bioterrorism

Terrorism by intentional release or spread of pathogens.

cancer

A disease in which abnormal body cells divide of control.

carbon monoxide

A gas produced by cars, furnaces, and other devices that burn fuel; replaces oxygen in the blood and quickly leads to death.

carcinogen

Anything that can cause cancer; may be pathogens, chemical substances, or radiation.

carcinoma

A tumor of epithelial tissues, such as lung tissue.

lymphoma

A tumor of lymphatic cells, such as T cells.

oncogenes

Abnormal genes that stimulate the division of cells with damaged DNA.

ozone

A gas that forms close to the ground when high concentrations of air pollutants are heated by sunlight.

particulates

Tiny particles of solids or liquids suspended in the air; primarily formed by the burning of fossil fuels by motor vehicles and factories.

proto-oncogenes

Genes that normally help regulate cell division.

sarcoma

A tumor of connective tissues, such as bone.

sick building syndrome (SBS)

A combination of symptoms associated with working in a particular building, typically an office building.

tumor

An abnormal mass of tissue.

tumor-suppressor genes

Genes that normally repair damaged DNA or prevent cells with badly damaged DNA from dividing.

Lesson 09 Review Questions

Directions: Answer the following questions using complete sentences or retype the questions in your submission.

1. What is a carcinogen?

2. How do carcinogens cause cancer?

3. Identify three ways cancer can be treated.

4. List four warning signs of cancer.

5. How can you use the Air Quality Index to protect your health from air pollution?

6. The bacterium that causes plague is classified as a Category A bioterrorism agent. What can you conclude about the bacterium from this classification?

7. Explain why ozone is usually a worse problem in the summer than in the winter in North America.

8. Compare and contrast pollutants in indoor and outdoor air, including their effects on human health.

Reference no: EM133414027

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