exercise_nervous_II_topic_3

exercise_nervous_II_topic_3 - 4. a. Norepinephrine binds to...

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The Nervous System II: Ion Channels 1. List four neurotransmitters that bind to ion channels, these neurotransmitters are called ___________________________-acting neurotransmitters. a. b. c. d. 2. a. The binding of ACh opens ion channels in the dendrites or cell body that permits both _______ and ____________ to move through them. b. Which ion would move into the cell? ______________ out of the cell? ______________ c. Which ion has the greatest electrochemical gradient? ______________ d. The net movement of these two ions would do what to the cell? _________________ e. This would be called an _____________________________ postsynaptic potential, or ____________________. 3. a. An inhibitory postsynaptic potential (IPSP) causes a neuron to ___________________. b. An example of a neurotransmitter that causes an IPSP is ______________. c. What type of ions move into the cell in response to this neurotransmitter? ______________.
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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.

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exercise_nervous_II_topic_3 - 4. a. Norepinephrine binds to...

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