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Cellular Respiration Lab Report

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Cellular Respiration Lab Report
What Is Cellular Respiration and What Influences It’s Function?

BSC 2010L
06/19/2013

Abstract:
Eating is a basic essential of life that most people don’t pay much mind till they’re hungry. Eating is essential and very important for various reasons but one of the main reasons is for energy. Our bodies use a term called cellular respiration which is the process by which chemical energy of food is released and partially captured in the form of ATP or energy. Throughout the experiment that was conducted the principles of cellular respiration and how temperature affects it was evaluated through the use of crickets. The experiment begins with the obtaining of 10 adults live crickets and placing them in a 250
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The crickets were exposed to various temperatures in the order of an ice bath at of 4° C to a cold water bath of 15°C and then water baths with temperatures in the order of 26°C , 30°C, 35°C, 40°C and 45°C. The amount of Co2 at each temperature was recorded and used to graph results of the experiment.

Introduction:

Energy is the ability to cause change, an example being the ability to do work (). Without energy life would really not exist. There are two main types of energy one being potential energy which is stored energy and kinetic energy which is energy in motion. Regardless of the types of energy all living things acquire energy through the same methods with the most abundant supply of energy coming from cellular respiration. Cellular respiration is the catabolic pathways of aerobic and anaerobic respiration, which breaks down organic molecules and uses an electron transport chain to produce ATP(). In basic terms cellular respiration is the process our cells uses to break down foods we eat especially sugars into a form of energy that the cell can use. Cellular respiration is key for cells to be able to perform and happens in 3 stages. Glycolysis, which is the
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As observed in the Table 1 provided this was not always the case. The respiration rate of the ice bath with a temperature of 4°C was higher then the rate of the cold water bath of 15°C. Reason for this could be that the crickets were not able to acclimate their body temperature in the 6 minutes that they sat at room temperature after they were removed from the ice bath. After the cold water bath one can see on the Table 1 how the respiration rate increased as the water bath temperature increased. This continues all the way until the water bath of 39°C in which the respiration decreased. There are various reasons that could have caused this to happen, such as human error by not placing the carbon dioxide sensor correctly into the respiration chamber or not immersing the respiration chamber as deep into the water bath. Also, there could have been a reoccurrence of the possible earlier error of not giving the crickets enough time to acclimate. As expected and shown on Table 1 the highest rate of respiration was at 44.5°C with a respiration rate of 139.10

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