The Comparison of Thermoregulation and Metabolism

Thermoregulation is an organisms capability to corrobo regularize its remains temperature and metabolism is the process in which energy is transformed deep down an organisms consistency to maintain life. CSUSM comparative animal physiology students contained mice (Mus musculus) and Madagascar raspberry cockroaches (Gromphadorhina portentosa) in vacuum tight contains to measure O2 consumption which would then fork up into the passel particularized metabolous rate (MSMR). With the comparison between mice in populate and cold temperatures, mice held in cold temperatures had a high MSMR (t= 3.23, df= 16, p= 0.005).The MSMR of cockroaches held in cold temperatures resulted higher(prenominal) than cockroaches at room temperature (t= 1.87, df= 15, p= 0.081). Also, the mice held at both temperatures had a higher MSMR than the cockroaches at both temperatures. Since mice atomic number 18 endotherms, they would sire a higher metabolic rate at colder temperatures due to outgrowth consumption of O2 to produce heat and cockroaches would wee-wee spurn metabolic rate because they are ectotherms and have a higher heat conductance. Introductionmetabolic process is the chemical reactions in which an organism utilizes energy to maintain life. Since glucose is a main source of energy, organisms use glucose along with oxygen to produce carbon dioxide, irrigate and heat (Randall et al 2002). Knowing this, metabolism can be metric by the production of CO2 or the consumption of O2. This is called indirect calorimetry (Randall et al 2002).Direct calorimetry is another method of metabolic activity but it is a lot harder to measure heat production released from an organism. Factors that can affect metabolic rate are temperature and body pile. For endotherms, or organisms that regulate their own body heat, slant to have higher metabolic rates and high and unbroken body temperatures (Bennett & Ruben, 1979). Alternatively, ectotherms, or organisms that gain heat from their external environment, tend to have unhorse metabolic rates and have lower and variable body temperatures (Bennett & Ruben, 1979).Because endotherms mustinessiness regulate their own constant body temperature and have higher metabolic rates, they must constantly be consuming energy and if ambient temperatures drop, endotherms must rely on their low conductance to heat and thermogenesis to keep their internal body temperature constant (Lu et al1999 Berner,1999). As for ectotherms, because they at the mercy of the environment for heat, their mass specific metabolic rate is dependent on environmental temperature (Bennett & Ruben, 1979).In this experiment, CSUSM students measured O2 consumption of mice (Mus musculus) and Madagascar hissing cockroaches (Gromphadorhina portentosa) by enclosing them in a vacuum tight container and placing them in ambient room temperature and cold temperatures. I hypothesized that mice held at a cold temperature would have a higher mass specific met abolic rate than mice held at cold temperatures because since mice are endotherms they have to use more energy, or use more O2, to maintain their constant optimal temperature.Also, I hypothesized that the cockroaches held at room temperature would have a higher mass specific metabolic rate than the cockroaches held at cooler temperatures because since they are ectotherms, the lower the temperature the lower their metabolic rate will be. In addition, I hypothesized that mice held at room and cold temperature would have higher mass specific metabolic rate compared to the cockroaches held in both temperatures because mice have a lower conductance of heat. MethodsProcedure and methods were utilized from the Comparative Animal Physiology Laboratory Manual (Norris & Kristan, 2010). quartet student t-tests were included in the statistical analysis. ResultsIn the mass specific metabolic rate (MSMR) comparison between mice tested in room temperature vs. cold temperatures (figure 1), mice me asured at cold temperatures resulted in a higher rate (t= 3.23, df= 16, p= 0.005) but when the cockroaches were compared with respect to the two different temperatures (figure 1), cockroaches in cold temperature were found to have a higher MSMR (t= 1.87, df= 15, p= 0.081). In addition, the effects of endothermy were observed when the MSMR of mice kept in cold temperatures were higher than the MSMR of cockroaches held in cold temperatures (t= 9.52, df= 15, p