Midterm 2011W

Most abundant circulating antibody 2 ige x first

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Unformatted text preview: abundant circulating antibody 2. IgE x. first antibody produced in an immune response 3. IgG y. mucosal immunity 4. IgM z. triggers allergic reactions A. 1w, 2z, 3y, 4x B. 1z, 2y, 3w, 3x C. 1y, 2z, 3w, 4x D. 1y, 2z, 3x, 4w E. 1y, 2x, 3w, 2z MCDB 1B Midterm Green (2) Version: 2 Page: 2 12. Which of the following statements about gustation is FALSE? A. Human taste buds can distinguish five basic tastes. B. Microvilli on sensory cells increase the surface area for tasting. C. Taste buds of terrestrial vertebrates are confined to the oral cavity. D. The salty and sour taste buds are metabotropic receptors. E. The sensory cells our taste buds are replaced every few days. Match the muscle type on the left with its characteristic on the right. (Answers on the right may be used more than once or not at all, but choose only 1 answer for each question). These matchings are worth 1 point each. A. Slow-twitch muscle fibers 13. Oxidative muscle A B. Fast-twitch muscle fibers 14. Sprinter B B 15. High ATPase myosin 16. Following depolarization and action potential firing, the neuronal resting potential is restored when A. Cl- ions rush inward through the membrane. B. a Na+/K+ pump moves ions to their original concentrations. C. K+ ions rush inward through the membrane. D. Na+ ions rush outward through the membrane. E. all the answers are wrong. 17. Which of the following statements about lymph is FALSE? A. White blood cells inspect it in lymph nodes for pathogens and other non-self elements. B. It is derived in part from blood. C. Red blood cells are not found in the lymph. D. Lymph is eventually returned to the blood circulation via the thoracic duct. E. Immune cells are only found in the lymph. 18. Absorption of light by photoreceptors causes A. Na+ ion channels to close. B. opsin to fire an action potential. C. all-trans-retinal to be converted to 11-cis-retinal. D. depolarization of the disc membrane. E. transducin to convert cGMP to GMP. 19. Which of the following statements is INCORRECT? A. The...
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This test prep was uploaded on 02/13/2014 for the course MCDB 1B taught by Professor Weimbs during the Winter '08 term at UCSB.

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