BIO 202L Lab 10 Worksheet- Blood and the Heart

BIO 202L Lab 10 Worksheet- Blood and the Heart/BIO 202L Lab 10 Worksheet- Blood and the Heart

Lab 10 Blood and the Heart BIO202L

Student Name: Hadiatoulaye Diallo

Access Code (located on the lid of your lab kit): AC-RQBCTX

Pre-Lab Questions:

“1. Research the process of erythropoiesis, and explain the role erythropoietin plays. Why is this

a popular “doping” drug for athletes? “

Multipotential hematopoietic Stem cell --> Common Myeloid Progenitor-->Proenythoblast -->

Basophilic erythroblast --> Polychromatic erythroblast--> Orthochromatic erythroblast -->

Reticulocyte --> Erythrocytes. The reason this is a doping drug for the athletes is because it help

them get better at their jobs by increasing how much RBC in their blood circulation, which

results in increase how much oxygen going to the tissues, which also increases the muscle

performance by giving a great amount of oxygen to the muscles.

“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? “

A person living in Denver has higher altitude whereas a person in Philadelphia doesn’t. Which

therefore, means that Denver person is hypoxic because there is less oxygen in the air breathed.

At the end, the Denver person has increase in the haemoglobin in the blood. In result the

person in Denver will be more as to person in Philadelphia.

Experiment 1: Heart Valves and Pumps Table 2: Experimental Observations

Observations (with valve) and mL H2O

Displaced?

Observations (without valve) and mL H2O

Displaced?

Between 4-6mL of the H2O was able to

displace with valve.

Between 12-14mL of H2O was able to

displace without valve.

Post-Lab Questions

“1. What happened when you pressed on the balloon stretched over the jar? What does this

result represent? “

Whenever I pressed on the balloon stretched over the jar, the water leaves the jar through the

straw and end in the pan. I think this result represent blood from in/from the heart.

“2. What structure in this experiment mimics a heart valve? “

The structure in this experiment that mimics a heart valve is the ballon which acts as the valves

in the heart.

“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 valves influence the experiment by acting as the heart of the experiment. Just like the heart

without the valves the blood would backflow. The heart needs valves to distrubt blood through

the body. In the experiment without the valves some water would would come straight out of

the straw and some would would go back down the straw.

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Lab 10 Blood and the Heart BIO202L

“4. What other organs or body systems incorporate valves? How are they used? “

The lungs, kidney, liver and pancreas. The valves in the lungs lets trapped air and fluide escape

through while also blocking out air from entering as well. The Kidney valve (just one) is between

the bladder and the ureter, to prevent urine from flowing backward to the kidney. The liver

valve is the sphincter called the pyloric. It helps with controlling the movement the food eaten

between the stomach and the esophagus.

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