Effect Of Temp On Endo And Ectotherms (metabolism) :: essays research papers

Animal metabolism consists of the utilization of nutrients imprisoned from the digestive tract and their catabolism as fuel for energy or their conversion into substances of the tree trunk. Metabolism is a continuous mental process because the molecules and even just about kiosks of the body gull brief lifetimes and argon constantly replaced, while waver as a whole maintains its characteristic structure. This constant rebuilding process without a net change in the amount of a cell constituent is kn own as dynamic equilibrium (Grolier1996). In the blaze of food, oxygen is used and carbon dioxide is given off. The tempo of oxygen habit indicates the energy expenditure of an organism, or its metabolic rate (Grolier1996).Metabolic rate is directly linked to the core temperature in an animal. An ectotherm, or cold red-blooded animal, warms its body mainly by absorbing enkindle from its surroundings. The amount of heat it derives from its metabolism is negligible. In contrast , endotherms derive most or all of its body heat from its own metabolism (Campbells,p899). Because ectotherms do not produce their own heat, they cannot actively ensure their ideal temperature for an ideal metabolic rate (aquacult.htp). In the following experiment, we will attempt to examine the relationship between metabolic rate and purlieual temperature in both an ectoderm and an endotherm. I betoken that for the ectotherm, the metabolic rate will increase as the outside surround temperature will increase. I to a fault predict that the metabolic rate in the endotherm will remain relatively the same as the outside environment temperature changes. I also make the prediction that the ectotherm will have much lower metabolic rates than the endotherm.The procedures for this experiment are those that are referred to in Duncan and Townsend, 1996 p9-7. In our experiment however, each student gathering chose a temperature of either 5 C, 10 C, 15 C, or 20 C. apiece group selected a cra yfish, and placed it in an erlenmeyer flaskful filled with distilled water. The flask&8217s O2 levels had already been measured. the flask was then placed in a water bath of the selected temperature for thirty minutes, and then the O2 levels were measured again. Each group shared their findings with the class. The metabolic rates of the mouse were conducted by the instructor and distributed. We also did not use the Winkler method to measure the O2 levels. We used a step device instead. The results of this experiment are shown in the compiled student data in Table 1 below.