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Exam+2+--+Fall+2006+--+ANSWERS+_do+not+distribute_

Exam+2+--+Fall+2006+--+ANSWERS+_do+not+distribute_ - Bio...

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Bio 225 Exam 2 Fall 2006 Biology 225 Principles of Animal Physiology Name___Answer Key______ Exam 2 (100 pts) Fall 2006 (Denver) ID#__________________________ Thirty one questions total; Two sections (Part I – pp. 1-7; Part II – pp. 8-13) Part I. Multiple Choice (total 60 points). Each question is worth 2.5 points. Answer all of the questions. Multiple choice questions have only one answer. 1.) Active transport usually moves molecules a) toward higher pH. b) in a direction that brings about equilibrium. c) in the same direction as does diffusion. d) in the opposite direction as does diffusion. e) toward higher osmotic potential. 2.) Which of the following pituitary hormones are comprised of subunits derived from two different genes? a. Luteinizing hormone. b. Growth hormone c. Prolactin d. Thyroid stimulating hormone e. a and d. (LH and TSH are glycoprotein hormones comprised of subunits) 3.) The neuropeptides oxytocin and anti-diuretic hormone (ADH) are released from the vertebrate neurohypophysis into the systemic blood circulation. ADH is secreted in greater amounts during acute blood loss (i.e., hemorrhage). Which of the following do you think is an important physiological action of ADH during hemorrhage? 4.) Insulin, which is secreted by the beta cell located in the pancreatic Islets of Langherhans immediately after a meal causes: 1
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Bio 225 Exam 2 Fall 2006 5.) Approximately 90% of cases of diabetes mellitus are type 2. Which of the following best describes the cellular defect found in most cases of type 2 diabetes?
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