This topic contains a solution. Click here to go to the answer

Author Question: What is the correct term for the length of time for a drug concentration to decrease by half? 1. ... (Read 62 times)

EAugust

  • Hero Member
  • *****
  • Posts: 550
What is the correct term for the length of time for a drug concentration to decrease by half?
 
  1. Half-time
  2. Metabolism
  3. Half-life
  4. Distribution

Question 2

Which definition describes a receptor?
 
  1. A cell component to which a drug binds in a dose-dependent manner
  2. Present only in the drug's target tissue
  3. Required to drug action
  4. Analogous to the key in the lock-and-key model of drugreceptor interaction



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

hollysheppard095

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

Correct Answer: 3

Rationale 1: The length of time for a drug concentration to decrease by half is its half-life.
Rationale 2: The length of time for a drug concentration to decrease by half is its half-life.
Rationale 3: The length of time for a drug concentration to decrease by half is its half-life.
Rationale 4: The length of time for a drug concentration to decrease by half is its half-life.

Global Rationale: The length of time for a drug concentration to decrease by half is its half-life. Half-time, metabolism and distribution have different definitions.

Answer to Question 2

Correct Answer: 1

Rationale 1: A cell component to which a drug binds in a dose-dependent manner is a receptor.
Rationale 2: Present only in the drug's target tissue is incorrect because receptors are present not only in the drug's target tissue, but in many other tissues in the body. It often is drug effects at sites other than the target tissue that result in side effects.
Rationale 3: Required to drug action is incorrect because although most drugs act via receptor-mediated mechanisms, some drugs do not act at specific receptors.
Rationale 4: Analogous to the key in the lock-and-key model of drugreceptor interaction is incorrect because a receptor is analogous to the lock in the lock-and-key model of drugreceptor interaction.

Global Rationale: A cell component to which a drug binds in a dose-dependent manner is a receptor. Present only in the drug's target tissue is incorrect because receptors are present not only in the drug's target tissue, but in many other tissues in the body. It often is drug effects at sites other than the target tissue that result in side effects. Analogous to the key in the lock-and-key model of drugreceptor interaction is incorrect because a receptor is analogous to the lock in the lock-and-key model of drugreceptor interaction.




EAugust

  • Member
  • Posts: 550
Reply 2 on: Jul 24, 2018
Wow, this really help


Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

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?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

For a complete list of videos, visit our video library