Lab 10 Blood and the Heart BIO202L
Student Name: Monilola Anigala
Access Code (located on the lid of your lab kit): AC-I731J5
Lab Report Format Expectations
Utilize college level grammar and professional formatting when completing this worksheet.
Submissions without proper formatting, all required photos or sufficient responses will be rejected.
Pre-lab Questions
1. Research the process of erythropoiesis, and explain the role erythropoietin plays in the body.
Erythropoiesis is the process of red blood cell production, and erythropoietin is a hormone that
plays a crucial role in this process. Erythropoietin is mainly produced by the kidneys in response
to low oxygen levels in the blood. It stimulates the bone marrow to produce more red blood
cells, thereby increasing the oxygen-carrying capacity of the blood.
2. Based on your response to Question 1, above, why do you think erythropoietin is a popular
“doping” drug for athletes?
Athletes may misuse erythropoietin as a doping drug because it enhances the production of red
blood cells, leading to increased oxygen delivery to muscles. This can improve endurance and
performance, making it an attractive option for those seeking a competitive advantage.
However, its misuse poses serious health risks, including thickening of the blood, which can lead
to cardiovascular problems.
3. How would the hemoglobin content differ in a person living in Philadelphia (Elevation: 39 feet)
compared to someone living in Denver (Elevation: 5280 feet)? Explain your reasoning using the
information you provided in Question 1.
The hemoglobin content in a person living in Philadelphia (elevation: 39 feet) is likely to be
lower than that in someone residing in Denver (elevation: 5280 feet). This is due to the higher
altitude in Denver, where lower oxygen levels trigger the release of erythropoietin. As a result,
more red blood cells, and consequently more hemoglobin, are produced to adapt to the lower
oxygen availability at higher elevations. In contrast, individuals at lower altitudes, like
Philadelphia, experience less stimulation for erythropoiesis, leading to comparatively lower
hemoglobin levels.
, Lab 10 Blood and the Heart BIO202L
EXPERIMENT 1: CLASSIFICATION OF BONES
Introduction Questions
1. In this experiment, you will investigate the valves utilized by the heart. What other organs or
body systems incorporate valves? List and describe these, being sure to elaborate on how they
are used. (Hint: Your response should be 4-6 sentences long.)
In this experiment, the focus is on the heart valves, but valves are essential components in
various organs and body systems. One prominent example is the circulatory system, where veins
and arteries contain valves that regulate blood flow, preventing backward movement and
ensuring unidirectional circulation. Additionally, the lymphatic system features valves in lymph
vessels, aiding the one-way movement of lymph fluid. In the digestive system, valves are found
in the form of sphincters, controlling the passage of substances between different digestive
organs.
Data and Observations
Insert your observations for this experiment in the table below as detailed by the lab procedure.
Table 1: Experimental Observations
Observations (with valve) and mL H2O Observations (without valve) and mL H2O
Displaced? Displaced?
The straw allowed more water to enter, resulting As the volume of the neck decreased, water was
in the displacement of approximately 18 expelled, causing a decrease in the stream's flow.
milliliters of water. Approximately 11 milliliters of water were
displaced.
Results and Discussion
1. What happened when you pressed on the balloon stretched over the jar? What does this result
represent?
When pressure is applied to a stretched jar, water exits the straws attached to a ball, even
though the water doesn't flow continuously. This process is analogous to the heart pumping
blood.
2. What structure in this experiment mimics a heart valve?
The part of the balloon that we removed in step 1.
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
Student Name: Monilola Anigala
Access Code (located on the lid of your lab kit): AC-I731J5
Lab Report Format Expectations
Utilize college level grammar and professional formatting when completing this worksheet.
Submissions without proper formatting, all required photos or sufficient responses will be rejected.
Pre-lab Questions
1. Research the process of erythropoiesis, and explain the role erythropoietin plays in the body.
Erythropoiesis is the process of red blood cell production, and erythropoietin is a hormone that
plays a crucial role in this process. Erythropoietin is mainly produced by the kidneys in response
to low oxygen levels in the blood. It stimulates the bone marrow to produce more red blood
cells, thereby increasing the oxygen-carrying capacity of the blood.
2. Based on your response to Question 1, above, why do you think erythropoietin is a popular
“doping” drug for athletes?
Athletes may misuse erythropoietin as a doping drug because it enhances the production of red
blood cells, leading to increased oxygen delivery to muscles. This can improve endurance and
performance, making it an attractive option for those seeking a competitive advantage.
However, its misuse poses serious health risks, including thickening of the blood, which can lead
to cardiovascular problems.
3. How would the hemoglobin content differ in a person living in Philadelphia (Elevation: 39 feet)
compared to someone living in Denver (Elevation: 5280 feet)? Explain your reasoning using the
information you provided in Question 1.
The hemoglobin content in a person living in Philadelphia (elevation: 39 feet) is likely to be
lower than that in someone residing in Denver (elevation: 5280 feet). This is due to the higher
altitude in Denver, where lower oxygen levels trigger the release of erythropoietin. As a result,
more red blood cells, and consequently more hemoglobin, are produced to adapt to the lower
oxygen availability at higher elevations. In contrast, individuals at lower altitudes, like
Philadelphia, experience less stimulation for erythropoiesis, leading to comparatively lower
hemoglobin levels.
, Lab 10 Blood and the Heart BIO202L
EXPERIMENT 1: CLASSIFICATION OF BONES
Introduction Questions
1. In this experiment, you will investigate the valves utilized by the heart. What other organs or
body systems incorporate valves? List and describe these, being sure to elaborate on how they
are used. (Hint: Your response should be 4-6 sentences long.)
In this experiment, the focus is on the heart valves, but valves are essential components in
various organs and body systems. One prominent example is the circulatory system, where veins
and arteries contain valves that regulate blood flow, preventing backward movement and
ensuring unidirectional circulation. Additionally, the lymphatic system features valves in lymph
vessels, aiding the one-way movement of lymph fluid. In the digestive system, valves are found
in the form of sphincters, controlling the passage of substances between different digestive
organs.
Data and Observations
Insert your observations for this experiment in the table below as detailed by the lab procedure.
Table 1: Experimental Observations
Observations (with valve) and mL H2O Observations (without valve) and mL H2O
Displaced? Displaced?
The straw allowed more water to enter, resulting As the volume of the neck decreased, water was
in the displacement of approximately 18 expelled, causing a decrease in the stream's flow.
milliliters of water. Approximately 11 milliliters of water were
displaced.
Results and Discussion
1. What happened when you pressed on the balloon stretched over the jar? What does this result
represent?
When pressure is applied to a stretched jar, water exits the straws attached to a ball, even
though the water doesn't flow continuously. This process is analogous to the heart pumping
blood.
2. What structure in this experiment mimics a heart valve?
The part of the balloon that we removed in step 1.
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
