Immunity in action

Active immunity lasts for a ____________ time. Passive immunity lasts for a ___________ time.

• Long; Short

• Life; Life

• Hours; Long

• Short; Long

Doctors sometimes use a vaccine to prepare the body to defend itself against future infections. These vaccines most often contain

• antibodies

• antibiotics

• white blood cells

• weakened pathogens

What do memory cells do?

• Kills the virus
• Eats the virus
• Patrol the area and make the immune system work faster next time.
• Makes antibodies

Name this process

• eating
• phagocytosis
• destruction
• ingesting

Antibiotics do not work on 

• bacteria
• viruses
• fungi
• children

Disease-causing microorganism, such as a bacterium or virus.

• pathogen 
• allergen
• prion 
• antigen 

The process where leukocytes engulf and digest bacteria is called 

• leukocytosis
• hydrostatic pressure
• pathogenolysis
• phagocytosis

Which of the following is NOT a nonspecific defense?

• mucus
• sweat
• antibodies
• tears

Antibiotics are used to treat

• viruses
• bacteria
• both viruses and bacteria
• fungal infections, only

What do antibodies attach to on the pathogen?

• Anti inflammatory
• Antigens
• Antiseptic
• Antibodies