« previous next »

Author Question: A foreign substance that elicits the response of the immune system is called: A) histamine. B) ... (Read 29 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?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

The lymphatic system The lymphatic system
Primary glands of the endocrine system. Primary glands of the endocrine system.
The Reticular Activating System and Related Regions in the Brain Are Important Areas of Focus for D The Reticular Activating System and Related Regions in the Brain Are Important Areas of Focus for D
Female Reproductive System Female Reproductive System
Acquisition and Extinction of a Salivary Response Acquisition and Extinction of a Salivary Response
The Global Positioning System determines the location of an object from its distances to ... The Global Positioning System determines the location of an object from its distances to ...
Video: Polysaccharides

For a complete list of videos, visit our video library