Immunology Final

HIV is spread by

• intravenous drug use

• sexual contact

• contact with infected blood.

• all of the above

How are infectious diseases spread?

• through coughing, sneezing, or physical contact

• through contaminated water and food

• by infected animals

• all of the above

Antibiotics fight infections by

• preventing viruses from replicating.

• killing bacteria

• killing infected cells

• growing green mold that inhibits bacterial growth

What triggers the production of

antibodies

• an antigen

• an antibody

• phagocytes

What is the virus that causes AIDS?

• SIV

• HIV

• HPV

Individuals with AIDS may have difficulty fighting off otherwise harmless infections because AIDS...

• causes colds and fevers that wipe out B cells.

• produces antibodies that attack healthy cells.

• attacks T cells that normally fight off infection.

• sits inactive in cells until it is triggered.

Which disorder is caused by a virus?

• Strep throat

• Bad breath

• Athlete’s foot

• Polio

Vaccination is a way to prevent development of diseases caused by

• viruses

• bacteria

• both viruses and bacteria

Which disorder is caused by bacteria?

• Common cold

• AIDS

• Strep throat

• Heart disease

One difference between viruses and bacteria is that viruses

• cannot reproduce on their own

• are much larger

• do not contain any genetic material

• have more organelles than bacteria