Drug abuse usually involves those drugs which
a. are psychoactive.
b. act on the central nervous system.
c. bind to neuron receptors.
d. change the chemical messages that neurons send and receive.
e. all of these
E
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Most enzymes
A. are generic, typically recognizing a number of different substrates. B. are specific, typically recognizing a single or a few substrates. C. are active over a wide pH range. D. are active over a wide temperature range. E. are generic, typically recognizing a number of different substrates AND are active over a wide pH range.
A very rudimentary “brain” found in flatworms consists of a collection of neurons that
integrate information called __________.
a. ganglia b. a spinal cord c. a nerve net d. interneurons
Which of the following statements about bile are false?
a. It emulsifies fats. b. It converts fats into droplets called micelles. c. It makes it easier for lipase to digest fats. d. It is yellow in color due to the presence of bilirubin. e. It emulsifies proteins.
The anterior pituitary hormone that promotes milk production is called __________
Fill in the blank(s) with the appropriate word(s)