Immune System Quiz

What are skin, mucus, and cilia examples of in the context of the immune system?

• Pathogens

• Vaccines

• Physical barriers

• Diseases

What happens when a pathogen infects the body?

• The body's defenses are weakened.

• The immune system is triggered to attack and destroy the pathogen.

• The body becomes more susceptible to other diseases.

• The pathogen strengthens the body's defenses.

What can lead to disease and death when a person encounters a harmful organism?

• Immune system

• Vaccine

• Susceptibility

• Physical barriers

What is a pathogen?

• A type of antibody

• A bacterium, virus, parasite, or fungus that can cause disease

• A component of the immune system

• A medication used to treat infections

What is an antigen?

• A type of white blood cell

• A medication that fights infections

• The subpart of a pathogen that causes the formation of antibodies

• A disease caused by pathogens

What role do antibodies play in the immune system?

• They act as soldiers in the body's defense system

• They serve as pathogens to cause disease

• They are the viruses that the immune system fights against

• They are the antigens that trigger the immune response

How does the human body respond when exposed to an antigen for the first time?

• It immediately produces specific antibodies

• It takes time for the immune system to respond and produce antibodies specific to that antigen

• It does not respond at all

• It produces a general response that is not specific to the antigen

What do antigen-specific antibodies do once they are produced?

• They mutate to become more effective against the pathogen.

• They work with the rest of the immune system to destroy the pathogen and stop the disease.

• They immediately die after the pathogen is defeated.

• They protect against all types of pathogens.

Antibodies to one pathogen generally don't protect against another pathogen except when:

• The pathogens are completely different from each other.

• The pathogens are very similar to each other, like cousins.

• The pathogens are less harmful.

• The pathogens are found in the same geographical location.

What happens when the body produces antibodies in its primary response to an antigen?

• It stops producing any more antibodies for future infections.

• It creates antibody-producing memory cells that die once the pathogen is defeated.

• It creates antibody-producing memory cells that remain alive even after the pathogen is defeated.

• It immediately forgets the pathogen after the disease is stopped.