Biology Chapter 17

How could you experimentally determine that a newly discovered disease-causing agent is a virus or a bacterium?

• Test to see if it is killed by changes in salt concentration.

• Test to see if it is metabolically active outside a living cell.

• Test to see if is killed by high temperatures.

• Test to see if is killed by changes in pH.

Fill in the blank with the correct answer by typing in the box. _______ cells allow the body to remain immune to a pathogen that the immune system has encountered in the past.

Fill in the blank with the correct answer by typing in the box. If a child is born without functioning B or T cells, the child will suffer from a kind of _______.

Immunocompetent T and B cells remain in bone marrow and the thymus, respectively, until they are needed by the body to fight an infection.

• true

• false

Fill in the blank with the correct answer by typing in the box. Chemical messengers called ______ send feedback to the nervous system, which causes the symptoms of feeling sick, such as muscle pain and running a fever.

What can result when the immune system no longer recognizes self-antigens?

• allergy attack

• autoimmune disorder

• hypersensitivity

• complement activation

Allergies are caused when antibodies create an immune response that targets the body's own cells or tissues.

• true

• false

Localized redness and swelling, along with warmth and pain are associated with which of the following?

• the natural killer cell response

• the inflammatory response

• the complement response

• the adaptive immune response

Monocytes circulate in the blood and lymph until they find an infected tissue, then they become what type of cell?

• macrophage

• mast cell

• B cell

• T cell

Which of the following can be treated post-infection with a vaccine?

• herpes

• polio

• ebola

• flu