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Author Question: A foreign substance that elicits the response of the immune system is called: A) histamine. B) ... (Read 25 times)

sjones

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on: Jul 2, 2018
A foreign substance that elicits the response of the immune system is called:
 
  A) histamine.
  B) antigen.
  C) antibody.
  D) stimulant.

Question 2

Which of the following statements regarding receptor sites of medications is TRUE?
 
  A) An agonist is a drug that binds to receptor sites and prevents a normal response by the cell.
  B) An antagonist is a drug that binds to a receptor and causes a response.
  C) A protagonist is a drug that binds to a receptor and causes a response.
  D) The stronger the attraction of a drug to a receptor site, the greater the affinity.


nyrave

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Reply #1 on: Jul 2, 2018
Answer to Question 1

B

Answer to Question 2

D


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