« previous next »

Author Question: A foreign substance that elicits the response of the immune system is called: A) histamine. B) ... (Read 77 times)

sjones

  • Hero Member
  • *****
  • Posts: 520
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

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 2, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Neuro System Neuro System
Endocrine system mind map Endocrine system mind map
Lymphatic system vessels and the flow of lymph. Lymphatic system vessels and the flow of lymph.
The carnitine acyltransferase system, for transport of fatty acyl-CoAs into mitochondria The carnitine acyltransferase system, for transport of fatty acyl-CoAs into mitochondria
Main components of the human endocrine system and the effects of their secretions Main components of the human endocrine system and the effects of their secretions
Some of the major nerves of the human nervous system Some of the major nerves of the human nervous system
Video: First Stage of Labor and Delivery Video

For a complete list of videos, visit our video library