BIOL 202L Lab 10 Blood and the Heart (heart valve) | Questions and Answer solutions | Already GRADED A+
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BIOL 202L
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BIOL 202L
Student Name: Click here to enter text. Access Code (located on the lid of your lab kit): Click here to enter text. Pre-Lab Questions: 1. Research the process of erythropoiesis, and explain the role erythropoietin plays. Why is this a popular “doping” drug for athletes? Erythropoises creates mo...
and explain the role erythropoietin plays why is this a popular “doping” drug for athletes
2 how would the hemoglobin content differ in a person living in
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Lab 10 Blood and the Heart BIO202L
Student Name: Click here to enter text.
Access Code (located on the lid of your lab kit): Click here to enter text.
Pre-Lab Questions:
“1. Research the process of erythropoiesis, and explain the role erythropoietin plays. Why is this
a popular “doping” drug for athletes? “
Erythropoises creates more red blood cells, it occurs when the body lower oxygen levels in
order to increase oxygen levels. Blood doping is popular because with increases oxygen levels,
they have better endurance.
“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? “
The person in Denver would have higher hemoglobin because living in an environment with less
atmospheric pressure would lower oxygen levels and so erythropoiesis would occur causing
higher hemoglobin.
Experiment 1: Heart Valves and Pumps Table 2: Experimental Observations
Observations (with valve) and mL H2O Observations (without valve) and mL H2O
Displaced? Displaced?
The water that came out of the straw was not The water was less controlled and flowed out
much and came out more controlled. There more freely. There was around 8ml
was around 5.75ML displaced. discplaced.
Post-Lab Questions
“1. What happened when you pressed on the balloon stretched over the jar? What does this
result represent? “
Water came out of the straw representing the heart pumping.
“2. What structure in this experiment mimics a heart valve? “
The balloon neck.
“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 regulated the flow and stopped water from returning to the jar.
“4. What other organs or body systems incorporate valves? How are they used? “
Veins, they are used to prevent backflow.
This study source was downloaded by 100000801755870 from CourseHero.com on 03-10-2022 20:36:43 GMT -06:00
Experiment 2: Effect of Chelation Therapy on Arterial Plaque Levels
Table 3: Eggshell Observations
Day Water Observations 4% EDTA Observations 8% EDTA Observations
1 No Changes No Changes Little bit of bubbles
2 No Changes No Changes No Changes
3 No Changes Bubbles Deterioration
4 No Changes No Changes Serperation
5 No Changes No Changes Deterioration
6 No Changes No Changes No Changes
7 No Changes Deterioration No Changes
8 No Changes No Changes Deterioration
9 No Changes No Changess Deterioration
10 No Changes No Changes Deterioration
11 No Changes Some Seperation No Changes
12 No Changes No Changes No Changes
13 No Changes No Changes Deterioration
14 No Changes No Changes No Changes
Post-Lab Questions
“1. Describe the differences you observed between the water beaker, the 4% EDTA beaker, and
the 8% EDTA beaker. “
No change in the water beaker, 4% EDTA beaker started to break down, the 8%EDTA beaker did
break down.
“2. Does the beaker without EDTA serve as a positive or negative control? How do you know?
This study source was downloaded by 100000801755870 from CourseHero.com on 03-10-2022 20:36:43 GMT -06:00
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