In “grind and bind” experiments to measure a drug’s affinity, all of the following are reasons for using radioactive markers EXCEPT:

The limbic part of the brain is most strongly associated with _________. 

If a chemical is proposed to be a neurotransmitter, then the following characteristics must be demonstrated:

A lower LD50:ED50 ratio generally indicates that a drug is:

Two parts of the nervous system are thought to drive responses known as fight/flight and rest/digest. These parts are known as:

A pharmaceutical company is looking to create a more potent drug that increases the both the affinity and efficacy of a drug that is already being used. How would the dose-response curve change as the researchers work to create the more potent drug?

Which of these compounds has the lowest boiling point?

Which of the following species has the largest atomic radius?

For which of the following equations is ∆Hºrxn equal to ∆Hºf  for the product?

What effect does hyponatremia have on cells in the central nervous system?