BIO 201L Lab 10 Blood and the Heart.

Lab 10 Blood and the Heart BIO202L Student Name: Access Code (located on the lid of your lab kit): AC-53N9HLS Pre-Lab Questions: “1. Research the process of erythropoiesis, and explain the role erythropoietin plays. Why is this a popular “doping” drug for athletes? “ Erythropoiese is formation of red blood cells. Atheles take drugs to create more blood cells to increase performance and oxygen. “2. How would the hemoglobin content differ in a person living in Philadelphia (Elevation: 39 feet) compared to someone living in Denver (Elevation: 5280 feet)? Why? “ High elevation in Denver increase the formation of red blood cells because there is less oxygen to be processed Experiment 1: Heart Valves and Pumps Table 2: Experimental Observations Observations (with valve) and mL H2O Displaced? Observations (without valve) and mL H2O Displaced? 7ml 10ml Post-Lab Questions “1. What happened when you pressed on the balloon stretched over the jar? What does this result represent? “ Water came out, which represents how back flow is inhibited in the heart. “2. What structure in this experiment mimics a heart valve? “ The end of the ballon over the jar “3. How did the valve influence the experimental results? If possible, indicate the difference (in mL) in water displaced with the valve versus without the valve. Does the valve enhance the water flow, and why? “ The valve allows less water, which indicate amount of displacement. “4. What other organs or body systems incorporate valves? How are they used? “ Vein, to allow the flow of blood