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

Animal metabolous process consists of the utilization of nutrients absorbed from the digestive tract and their catabolism as fuel for expertness or their renewal into substances of the soundbox. Metabolism is a continuous process because the molecules and even most cells of the body have brief lifetimes and are constantly replaced, while tissue as a whole maintains its characteristic structure. This constant rebuilding process without a net change in the amount of a cell parcel is known as dynamic equilibrium (Grolier1996). In the combustion of food, conclave O is used and carbon dioxide is given off. The footstep of oxygen consumption indicates the energy expenditure of an organism, or its metabolic rate (Grolier1996).Metabolic rate is like a shot linked to the core temperature in an animal. An ectotherm, or cold blooded animal, warms its body mainly by absorbing warmheartedness from its surroundings. The amount of heat it derives from its metabolism is negligible. In con trast, endotherms derive most or all of its body heat from its own metabolism (Campbells,p899). Because ectotherms do non produce their own heat, they cannot actively ensure their ideal temperature for an ideal metabolic rate (aquacult.htp). In the chase experiment, we give attempt to examine the relationship between metabolic rate and environmental temperature in both an ectoderm and an endotherm. I predict that for the ectotherm, the metabolic rate volition increase as the outside environment temperature will increase. I also 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 oftentimes 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 group chose a temperature of either 5 C, 10 C, 15 C, or 20 C. Each group select ed a crayfish, and placed it in an erlenmeyer flask filled with distilled irrigate. 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 divided 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 measuring thingummy instead. The results of this experiment are shown in the compiled student data in display board 1 below.