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Exam 1 - NameandHUID Life Sciences 2 Midterm #1 Question #...

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Name and HUID p. 1 Life Sciences 2 Midterm #1 Question # Points #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 #16 Total
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Name and HUID p. 2 Two Point Questions 1) Name just two derivatives of each germ layer listed below. (2 points) a) Mesoderm b) Endoderm 2) Where in the ectoderm do neural crest cells originate, and list one specific structure that they eventually form. (2 points) 3) Contrast cytoplasmic and membrane hormone receptors, commenting on their relative speed and what direct cellular activity they regulate. (2 points) 4) What hormone is detected by a standard over-the-counter pregnancy test? Briefly describe the role of this hormone in early pregnancy. (2 points)
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p. 3 5) List two things that differ between an action potential and a graded potential and how they differ. (2 points) 6) What is saltatory conduction of an action potential and what is its purpose? (2 points) 7) How do spatial summation and temporal summation differ in the generation of an action potential? (2 points)
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This note was uploaded on 03/29/2012 for the course LS 2 taught by Professor Andrewa.biewener,petert.ellison,anddaniele.lieberman during the Fall '10 term at Harvard.

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Exam 1 - NameandHUID Life Sciences 2 Midterm #1 Question #...

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