Biology- Immune System

What is considered the first line of defense in the immune system?

• Blood vessels

• Mucous membranes

• Skin

• White blood cell

Which of the following is not mentioned as a type of pathogen?

• Fungi

• Bacteria

• Parasitic worms

• Insects

What is the role of histamine in the inflammatory response?

• Consume pathogens

• Cause blood vessels to dilate

• Destroy cells

• Produce antibodies

What is the main function of a cytotoxic T cell in the immune system?

• Produce antibodies

• Destroy infected cells

• Dilate blood vessels

• Consume pathogens

What is the purpose of Memory B cells and Memory T cells in the immune system?

• Destroy pathogens

• Produce histamines

• Keep a memory of antigens

• Narrow blood vessels

For what purpose can vaccines introduce either an inactivated or weakened pathogen into the body?

• Cause immediate immune response

• Prevent memory cell formation

• Launch an efficient attack on the body

• Widen blood cells

Which type of response involves the production of antibodies by B cells?

• Cell-mediated

• Nonspecific

• Humoral

• Inflammatory

What do antibodies do when they bind to an antigen?

• Destroy the pathogen

• Stimulate T cells

• Cause allergic reactions

• Dilate blood vessels

What is the main purpose of the immune response launched by a vaccine?

• Destroy pathogens

• Form memory immune cells

• Produce antigens

• Cause diseases

Which type of white blood cell has the ability to produce antibodies?

• Macrophage

• Cytotoxic t cell

• B cell

• Memory t cell