LS Chapter 14 Test

An infectious disease is a disease that

• is cause by pathogens

• cannot be cured

• can be spread through bacteria

• is caught because the weather turns cold

How are colds and the flu usually spread?

• from pathogens that live naturally in soil

• through an animal bite

• by direct or indirect contact with infected persons

• by cold weather

How do breathing passages help keep pathogens out of the body?

• Phagocytes in the breathing passages destroy pathogens.

• Mucus and cilia trap pathogens.

• Chemicals kill some pathogens.

• They produce antibodies that kill pathogens.

Immunity is the body’s ability to

• distinguish pathogens from one another.

• destroy pathogens before they can cause disease.

• fight disease with the inflammation response.

• produce antigens.

Based on what is known about the way HIV is spread among people, which of the following is one way that a person can become sick with AIDS?

• hugging an infected person

• bumping into an infected person

• having sex with an infected person

• donating blood to an infected perosn

A disorder in which the immune system is overly sensitive to a substance not normally found in the body is called

• carcinogen

• diabetes

• antibody

• allergy

In which disease do a person’s body cells multiply uncontrollably?

• asthma

• diabetes

• AIDS

• cancer

What type of white blood cells are part of the inflammatory response?

• T cells

• antigen

• B cells

• phagocytes

How does HIV damage the immune system?

• by damaging antibodies

• by destroying B cells

• by destroying T cells

• by delaying the inflammation response

Which of the following is an example of indirect contact that spreads some infectious diseases?

• inhaling infected drops of moisture

• animal bites

• touching an infected person

• hugging an infected person