Immunology and Microbiology Quiz

How is naturally acquired active immunity developed?

• Receiving antibodies through breastmilk

• Getting vaccinated

• Catching a disease and recovering

• Getting injected with antitoxins

Which best describes passive immunity?

• Long-term and involves memory cells

• Involves antibodies your body makes itself

• Involves a vaccine

• You receive ready-made antibodies

A vaccine gives you which type of immunity?

• Artificial passive

• Natural passive

• Artificial active

• Natural active

Which of the following provides natural passive immunity?

• Flu shot

• Breastfeeding

• Exposure to measles

• Booster shot

B cells are activated when they:

• Kill infected cells directly

• Recognize an antigen and get help from helper T cells

• Are stimulated by cytotoxic T cells

• Release histamine

Once activated, B cells become:

• Phagocytes and neutrophils

• Cytokines and antibodies

• Plasma cells and memory cells

• CD4 and CD8 cells

Helper T cells are:

• CD8 cells

• Cytotoxic T cells

• CD4 cells

• Memory B cells

Cytotoxic T cells:

• Are also called CD4 cells

• Kill infected or abnormal body cells

• Produce antibodies

• Suppress the immune system

What activates T cells?

• Antibodies

• Plasma cells

• Antigen-presenting cells (APCs)

• Histamine

What’s the main role of plasma cells?

• Kill infected cells

• Activate T cells

• Make antibodies

• Eat pathogens