CH_Biol103_Daphnia Circulation lab

CH_Biol103_Daphnia Circulation lab - Daphnia Circulation...

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Daphnia Circulation Lab Abstract. The experiment was conducted to compare heart rates in healthy and infected daphnia. When the daphnia are healthy, the heart rates of the daphnia were lower than the infected specimens. Infected daphnia have a lower hemoglobin level than the healthy daphnia. Introduction The primary function of the circulatory system is to deliver oxygen and nutrients to the tissues in the body. Circulatory systems can either be closed, where the blood in confined to vessels, or they can be open where the blood occupies the general body cavity. The oxygen that is found in blood is bound to hemoglobin. When the blood contains high levels of hemoglobin, it gives the capability to carry a greater amount of oxygen. When oxygen becomes less readily available, the amount of hemoglobin will adapt to correspond with the new oxygen level. In Daphnia, the hemoglobin level in their blood will depend on the amount of oxygen available to them in their aquatic habitat. Heart rate is also dependant on the amount of oxygen available to the Daphnia. When the oxygen decreases, the heart rate will increase so that more oxygen will be carried to the
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This note was uploaded on 10/19/2008 for the course BIOL 103 taught by Professor Garcia during the Fall '08 term at Clemson.

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CH_Biol103_Daphnia Circulation lab - Daphnia Circulation...

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