Prelim_1version_A_key - Name _ ID number _ Prelim 1 VERSION...

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Name _____________________________ ID number ____________________________ Prelim 1 – VERSION A HD 220: The Human Brain and Mind I expect you to adhere to the University’s Code of Academic Integrity. This includes students’ not misrepresenting their own work and during in-class examinations not using, giving, or receiving any assistance or information not given in the examination or by the proctor. No student may take an examination for another student. Please put your name and Cornell ID on the front page and your name on each page. This is to ensure that we give you credit for the entire exam in case pages become unstapled. Each question is worth 2 points unless indicated otherwise. Please do not open exam until proctor indicates time has begun. For Grader Use Only Page Points Available Points received Scantron 84 11 3 12 5 13 4 (+2 EC) 14 4 15 4 16 6 17 7 (+2 EC) 18 8 Total 125 (+4 EC)
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Name _________ KEY ____________________ VERSION A 2 2.2 1. The nerve cell’s phospholipids bilayer is crucial for a. cell metabolism b. gene transcription c. protein synthesis d. maintenance of the cell’s ionic charge 2 d C 3.1 2. A change in the resting potential from -70 mV to -65 mV would be called: a. Hyperpolarization. b. Depolarization. c. Graded inhibitory potential. d. An action potential. 2 b C 2.2 3. A number of disorders and developmental disabilities may be caused by abnormal neural development. Which of the following disorders is NOT thought to involve disordered neuronal migration? a) Fetal alcohol syndrome b) Cerebral Palsy caused by anoxia (oxygen deprivation) at birth c) Mental retardation caused by radiation exposure d) Schizophrenia 2 b C 1.1 4. Cerebrospinal fluid is NOT important for: a. support and isolation b. transportation of hormones and waste c. apoptotic neurogenesis d. ionic balance e. NONE of the above is false, all are true. 2 c C 2.2 5. During brain development, myelination proceeds at different rates for different parts of the brain. Which of the following are areas that are relatively late to myelinate? a. Cerebellum b. The prefrontal cortex and parts of the temporal and parietal cortex c. the precentral and postcentral gyri d. Primary auditory cortex 2 b C
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Name _________ KEY ____________________ VERSION A 3 4.1 6. Loewi did a famous experiment in neurobiology. Which of the following statements is true about what this experiment showed? a. Loewi was famous for dissecting a rat brain in order to examine the basic structure of a neuron b. Loewi pioneered the use of the giant squid axon for electrical recording, which helped to explain the action potential. c. Loewi discovered so called, “vagus stuff”, which showed neurons communicate chemically. d. Loewi electrically stimulated frog legs, showing that electricity was crucial for nervous system function. 2 c C 3.2 7. Lou Gehrig’s Disease or ALS: a. Is often associated with an “intention” tremor.
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Prelim_1version_A_key - Name _ ID number _ Prelim 1 VERSION...

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