Pathogens, Antibodies & Antibiotics

A bacterium, virus, or other microorganism that can cause disease is a __________________.

• antibody

• pathogen

• host

• vaccine

Which of the following is NOT part of the human body's 1st line of defense against pathogens?

• skin

• mucus lining of the nose

• white blood cells

• stomach acid

Which cells protect the body against infectious disease and pathogens?

• red blood cells

• white blood cells

What is another name for a white blood cell?

• leukocyte

• prion

• antibody

• platelet

What do the white blood cells do if the body's 2nd line of defense is triggered?

• The white blood cells are not part of the 2nd line of defense.

• The white blood cells attack any foreign particles that enter the body, no matter what they are.

• The white blood cells make specific antibodies to destroy specific pathogens.

Which of the following does NOT occur during the inflammatory response (2nd line of defense)?

• specific antibodies are made to destroy pathogens

• fever occurs to try to destroy pathogens

• area of the body becomes red and swollen because fluid and white blood cells leak from blood vessels

Which type of white blood cells are made in the thymus gland and destroy cells that have been infected?

• T helper cells

• T killer cells

• B cells

Which type of white blood cells are made in the thymus gland and give instructions to other white blood cells to either make antibodies or start attacking?

• T helper cells

• T killer cells

• B cells

Which type of white blood cells are made in the bone marrow and produce specific antibodies?

• T helper cells

• T killer cells

• B cells

_____________ are specialized proteins that can recognize and destroy specific pathogens.

• parasites

• antibodies

• vaccines

• surface proteins