课程名称︰普通生物学丙 课程性质︰ 课程教师︰郑石通 李士杰 开课学院： 开课系所︰物理治疗学系 职能治疗学系 考试日期（年月日）︰20130509 考试时限（分钟）：15mins 是否需发放奖励金：是 （如未明确表示，则不予发放） 试题 : 1.Compare open and closed circulation systems. (3) 2.Why zebrafish is suitable for blood vessel and circulation research?(3) 3.Compare the oxygen concentration in the air and the water? Explain how fish obtain enough oxygen from water. (4) 1. Open circulation: blood vessels with open ends that blood mix directly with interstitial fluid. Close circulation: blood vessels with no open ends that blood cannot mix directly with interstitial fluid. 2. The early zebrafish larvae are transparent with visible blood vasculature and have blood vessel fluorescent transgenic fish that greatly facilitate research. 3. Water has much less oxygen compared to the air. Fish swim to flush a large quantity of water through gills in order to obtain enough oxygen.In addition, they use a counter current strategy to more efficiently uptake oxygen. --

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