BIO310H5 Final: Exam Review (possible questions)
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34. Choose the one(s) that is/are an example of homeostatic control (choose ALL that apply):
Body temperature | ||
Energy balance | ||
Increase in atmospheric pressure | ||
None is correct |
32. Which of the following is TRUE regarding chemical synapses? (Select all that apply.)
They have gap-junctions | ||
Vesicles fuse with the presynaptic membrane to release neurotransmitters into the synaptic cleft | ||
When released from postsynaptic membrane receptors, molecules associated with the neurotransmitter may be returned to the presynaptic cell. | ||
Neurotransmitter is secreted in the synaptic cleft |
20) After a neurotransmitter is released, it must _____________to the postsynaptic receptor to induce an excitatory postsynapticpotential or an inhibitory postsynaptic potential.
All of the answers provided are correct |
Bind |
None of the answers provided are correct |
Be degraded by enzymes before binding |
22) Which of the following is a method for terminating an actionpotential?
Postsynaptic binding |
All of the answers provided are correct |
Reuptake |
Enzymatic degredation |
23) Drugs of abuse exert their effects in the brain by...
Increasing or decreasing neurotransmitter release |
All of the answers provided are correct |
Occupying receptors, thereby acting as agonists and/orantagonists |
Altering the reuptake of neurotransmitter |