JCW.NPB.101.Midterm - Wingfield questions for NPB Midterm...

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Wingfield questions for NPB Midterm 1, Oct. 15, 2008. 1. A patient has suffered damage in Broca’s area. What behavioral deficiency would you expect? a. Inability to understand speech. b. Speech but the words make no sense. c. Inability to speak. d. Loss of auditory capacity. e. Unable to understand written words. 2. Secondary active transport molecules function in which way? a. Allow passive diffusion down a concentration gradient. b. Provide activate transport for one molecule against a concentration gradient. c. Require cAMP. d. Transport one molecule one way after phosphorylation and a second molecule the other way without additional energy. e. c and d. 3. A resting membrane potential is partially maintained by: a. Passive sodium ion channels. b. Passive potassium ion channels. c. Sodium-potassium ion pump. d. None of the above. e. All of the above.
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4. A graded potential has the following properties: a. Shows an all-or-none depolarization. b. Always has the same duration. c. Can vary in duration. d. Can vary in amplitude. e. and d. 5. The refractory period of a depolarized neuron involves: a. Reduced potassium ion channels. b. Loss of graded potentials in the cell body. c. Inactivated sodium channel. d. Opening of calcium channels. e. Closing of calcium channels. 6. Action potentials in axons are initiated in which part of the neuron?
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JCW.NPB.101.Midterm - Wingfield questions for NPB Midterm...

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