Purpose: The purpose of this lab was to see how the changes in exercise intensity affect the rate of metabolism within the body. Methods: In this lab‚ indirect calorimetry was used to measure metabolic rate by calculating caloric expenditure by the measurements of oxygen consumption. The variables measured were the fraction of oxygen expired‚ the fraction of carbon dioxide expired‚ and the total volume of air inspired. This experiment required the participation of two volunteers. First‚ the variables
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Photosynthesis and the Amount of Light _______________________________________________________________________ I. Introduction Photosynthesis the process where plants use sunlight (energy) to synthesize foods forming the products carbohydrates and water (H20 + CO2 + Light CH2O + O2). For photosynthesis to take place they need water‚ carbon dioxide and light and chloroplasts. Light is absorbed inside he thylakoid
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Arnesh Kaewloyma 9/30/14 Enzyme Catalase under optimum conditions‚ speeds up the decomposition of hydrogen peroxide The students have studied that Hydrogen peroxide is a jeopardy to metabolism if it’s not obliterated. Enzymes are proteins produced by living cells of that act as catalysts which affects the rate of biochemical reaction by speeds up the breakdown of hydrogen peroxide into water and oxygen gas. The students have formed a hypothesis toward this experiment. If the speed of
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9/16/14 Physics 01L Density Abstract This experiment was conducted in order to determine the density of the Aluminum metal samples provided in the lab. Specific tools such as the vernier caliper and balance scale were used to measure and record the values found. Given that density is a measurement of mass over volume‚ both of these quantities would have to be determined experimentally‚ prior to proceeding with the calculation of the density‚ for each of the
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Biology 101 Popcorn experiment Lab partners Robert Barham Michelle hall Diva Mancada Kelley Pritt 1 Introduction Popcorn‚ or popping corn‚ is a type of corn which explodes from a kernel and puffs up when heated. It is a popular snack food‚ especially in movie theaters. Popcorn can be salted or sweetened. Air popped popcorn is naturally high in fiber‚ low in calories and fat‚ contains no sodium and is sugar free. This can make it an attractive snack for people with caloric or
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Although the reproduction of harmful bacteria may be hazardous‚ it is necessary for microbiologists to grow high populations of bacteria in the attempt to study the causes and provide prevention methods for spreading harmful bacterium. The purpose of this lab was to collect and observe microorganisms from the environment and the human body and placing into the appropriate media using aseptic transfer techniques. The necessity and value of collecting‚ identifying and analyzing is critical for learning how
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Botany Lab ------------------------------------------------- Introduction This study observed the effects of different body fluids and solutions relative to breaking down bacteria‚ specifically in the human body. The enzymes we studied‚ lysozomes‚ help the body lyse‚ or break down bacteria by targeting peptidoglycan in bacterial walls. The solutions and fluids studied were saliva‚ mucus‚ tears‚ a stock solution of lysozomes‚ and distilled water. The solutions were placed in agar containing Micrococcus
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Abstract: In this Lab we used the chemical DPIP to detect the rate of succinate broken down by the mitochondrial solution. We detected the amount of DPIP in the solution with a spectrophotometer and measuring the absorbance of light at the 600nm range. DPIP is a useful chemical to use in this experiment because it goes from a blue color when oxidized to a colorless liquid (Ogura‚ 281)‚ this is due to the hydrogen ions and electrons released during the transitional step between succinate and fumarate
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Introduction:Spirometry is the classic pulmonary function test‚ which measures the volume of air inspired or expired as a function of time. It can monitor quiet breathing and thereby measure tidal volume‚ and also trace deep inspirations and expirations to give information about vital capacity. Spirometrymay also be used to measure forced expiration rates and volumes and to compute FEV1/FVC ratios. Spirometry provides an objective measurement of lung function. It will measure the Expiratory Vital
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ratio of concentration represents the activity of the first metabolism enzyme of caffeine‚ CYP1A2 because it is responsible for the pathway of metabolism of caffeine. And the half-life of caffeine is about 4 to 5 hours (Thorn‚ 2011) Therefore‚ in this lab‚ we measure the saliva collected at different time and quantitatively analyzing
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