Immune System

True/False: Your body cannot make antibodies for pathogens that you have never been in contact with.

• True, because your body needs to encounter the pathogen at least once in order to create the antibodies.

• False, because you can make antibodies via immunizations given by a doctor.

What is the function of antibodies within the immune system?

• Antibodies kill off any antigen that enters the body.

• Antibodies are only made when you are given a vaccination for specific antigens.

• Antibodies bind to specific antigens to flag for destruction.

• Antibodies are part of an external defense mechanism.

Which of the following statements are TRUE about vaccinations?

• Allow B cells to make antibodies for any type of antigen the body comes in contact with.

• Triggers the body to make memory cells for specific pathogens.

• They are substances prepared from killed or weakened pathogens.

• Always allows the body to resist an infectious disease any time it comes into contact with it.

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What happens after the second time you are exposed to a pathogen?

• The body will not be able to fight off the pathogen quickly, because it knows how to get into the body easier.

• The body's immune system will react the same was as it did during the first exposure.

• The body can only be exposed to a pathogen a second time if you do not have a vaccine.

• The body will know how to fight off the pathogen quickly, because memory cells have been created after the first encounter.

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How do T cells differ from B cells?

• T cells fight pathogens by killing pathogens directly, while B cells fight pathogens by making antibodies.

• T cells only make memory cells, and B cells only make antigens

• T cells fight pathogens by making antibodies, while B cells fight pathogens by killing pathogens directly.

• T cells can only fight off pathogens the body has encountered once, and B cells can fight off any pathogen the body comes across.

A nonspecific defensive response of the body to tissue injury characterized by dilation of blood vessels and swelling.

• immunity
• interferon
• immunization
• inflammation

The blue molecule in this image is a(n) _______.

• Antibody

• Antigen

• Pathogen

• Blood cell

The orange molecule in this image is a(n) _______.

• Antibody

• Antigen

• Antibiotic

• Blood cell

How does a person get immunity through PASSIVE immunity?

• you have been infected
• you have been vaccinated
• you made antibodies
• you got your mother's antibodies at birth

The body’s nonspecific defenses against invading pathogens include

• antibiotics.
• mucus, sweat and tears.
• antibodies.
• Killer T cells.