We can identify a wide variety of bitter substances because ____.
A. we have many different bitter receptors
B. we have only one bitter receptor that responds to all bitter substances
C. we can combine the activity of the sour and salty receptors
D. even Pacinian corpuscles respond to bitter substances
Answer: A
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Complete the following analogy: Field of force: ____:: ____: Psychology
a. ?Physics; Gestalts b. ?Biology; Consciousness c. ?Anatomy; Behaviorism d. ?Physiology; Psyche e. ?Geography; Introspection
Your friend has hemophilia and is worried that he could pass it to his offspring when he has children. What can you tell him?
A. He is probably correct-he will pass on hemophilia. B. Hemophilia is an X-linked disorder and it would be impossible for him to pass it to any male offspring. It would be possible for his female offspring to be carriers, though. C. X-linked disorders are not inherited; he has no worries D. Since he has hemophilia, he is probably sterile and unable to father children.
Genes involved in __________ and __________ signaling are associated with human aggression.
A. serotonin; dopamine B. acetylcholine; epinephrine C. serotonin; epinephrine D. acetylcholine; dopamine
A drug such as methylphenidate, which blocks the dopamine transporter, would be expected to __________.
A. reduce the likelihood of activation of other neurons B. impair dopamine neurotransmission C. increase synaptic levels of dopamine D. decrease synaptic levels of dopamine