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Unformatted text preview: 4. a. Norepinephrine binds to a receptor that is separate from the ion channel. This is known as a/an ______________________________ - acting neurotransmitter. b. Norepinephrine is known as the ___________________________ messenger. c. The receptor is coupled to the ion channel by a ___________________. 5. a. This activates an enzyme which induces the production of a _____________ messenger. b. An intracellular enzyme is activated and ____________________ the ion channel. c. As a result of this sequence of events, what channels are closed? ____________________ d. What does this do to the neuron? ______________________________ 6. Name three neurotransmitters that can only act indirectly. a. b. c. 7. Which of the four neurotransmitters mentioned in question 1 can also act indirectly? a. b. c. 8. Which one of the four neurotransmitters mentioned in question 1 can only act directly? ______________________...
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This note was uploaded on 02/22/2009 for the course BIO 203 taught by Professor Johncabot during the Spring '08 term at SUNY Stony Brook.
- Spring '08