PBS 5.1.6 Immune Response

Which of these is NOT an example of non-specific defense?

• Mucus

• B cells

• Skin

• Stomach acid

Which of these is most likely to be the first cell in the specific defense to interact with (and maybe even kill) the pathogen?

• B cells

• T cells

• macrophages / phagocytes

• antibodies

What is the purpose of macrophages / phagocytes?

• To engulf and destroy pathogens, and then "tell" other cells about it.

• To activate B cells to make antibodies.

• To make antibodies.

• To repair damaged cells and tissue.

Which cell type makes antibodies?

• macrophages

• T cells

• B cells

• dendritic cells

What is the function of helper T cells?

• to make antibodies

• to "eat" infected cells

• to kill infected cells by releasing chemicals

• to coordinate the immune response by activating other WBCs

After a macrophage or phagocyte engulfs a virus or bacterium, what happens to that pathogen?

• It is digested, and its parts are displayed on the outside of the phagocyte.

• It is completely destroyed by the phagocyte.

• It replicates within the phagocyte and destroys it.

• It replicates within the phagocyte and infects T cells.

True or False: Antibodies against Influenza virus will protect you against the common cold.

• True

• False

Let's say your best friend has a cold and is sneezing and coughing her germs EVERYWHERE. Which will be the first to protect you from that common cold virus?

• Non-specific defense

• Specific defense

Which of these statements is true?

• Pathogens make antibodies against antigens.

• T cells make antibodies against phagocytes.

• Pathogens have antigens against which antibodies can be made.

• Only pathogens have antigens.

Your parents probably had chicken pox when they were younger. What allows them to be protected from getting chicken pox now?

• Memory B and T cells remain in the body.

• Phagocytes save a part of the chicken pox virus as a reminder.

• Leftover antibodies from that childhood infection are enough to protect them.

• Your brain stores a memory of that infection.