Manduca Sexta Lab Report

967 Words 4 Pages
Metabolism is a complex process in organisms that convert the food into energy for organism to function properly. Metabolic rate is typically defined as the amount of energy the organism is currently using to maintain the activity (Perkin, 2015). Since metabolism is a key in sustaining the organisms’ life, we decided to investigate the experiment about metabolic rate caterpillar, Manduca sexta. There are many techniques used to measuring the metabolic rate, but there are only best method that can be done in laboratory: “quantification of heat production and quantification of gas consumption” (Perkin, 2015).Our investigation is about measuring the oxygen consumption of the caterpillar in the trial duration when it was placed in sealed chamber along with chemical absorbing CO2 produced. Metabolism are mostly varies in …show more content…
Since we need to find that whether there is a statistically correlation between the body mass and metabolic rate of Manduca sexta, Regression test was used to analyze our data. The independent variable is the metabolic rate and the dependent variable is body mass.
3. Result The body mass of caterpillar (Manduca sexta) varied from 0.25g to 1.55g. The measured temperature inside of the chamber varied in different caterpillar and ranged from 22.0°C to 23.1°C. The volume of O2 consumption in 15 min ranged from 0.0mL to 0.60mL. The metabolic rate value (mL/min) was 0 to 0.04. From the Regression test, the P value is 0.079, coefficient value is 0.019 and 95% confidence interval value is from -0.0033 to 0.0405. It can be seen the correlation between body mass of Manduca sexta and its metabolic rate based on the graph (Fig.1) Figure 1: The correlation between body mass of Manduca sexta and its metabolic rate 4.

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