container. As it is shown in Figure 1.2. At the end of the twenty-minute mark‚ all twenty aphids were still living. Figure 1.2 Figure 1.2 This figure shows the black constructed paper box that we used to cover the clear two-part container for the second trial of the dark environment. Next‚ we decided to change the experiment a little. We wanted to test if different colors of light‚ has an effect on ladybug feeding. We set up two lamps; one with red lighting and the other with blue lighting. Again
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The lab of one dimensional motion is a series of experiments that deal with different types of motion in a single direction. In the first experiment‚ one dimensional motion of a small cart on an air track is measured in a one photogate system. The acceleration was calculated by the infrared light emitting electrode of the photogate sensing the slacks on the picket fence. The calculation for gravity yielded 9.63 m/s^2‚ which is consistent with the accepted value of 9.8m/s^2. In the second experiment
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48oC and boiling; then‚ at pH 3‚ pH 5‚ pH 7 and pH 9; and‚ finally‚ with the competitive inhibitor‚ hydroxylamine. We were able to measure enzymatic activity by the change in absorbance per second with a spectrophotometer. By testing different concentrations of peroxidase and its reaction rate in seconds‚ we were able to see that as the amount of enzyme increased the catalytic reaction also increased. The optimal amount of peroxidase concentration to be used in the subsequent experiments was
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Name: Danielle Title: Unknown Lab Report Introduction: There are many reasons for identifying an unknown bacterium. The reasons range from medical purposes‚ such as determining if the unknown could cause ailments in living things or knowing what microorganisms are needed to make antibiotics. The experiment was done by applying methods in order to identify an unknown bacterium. An unknown bacterium was handed out by Dr. Honer. The appropriate tests were prepared and applied. The
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Caroline Guidry Dr. Beverly A. Clement Organic Chemistry 2423‚ Section 304 25 October 2017 Lab 6: Natural Products I The main goal of this experiment was to employ isolation techniques to derive chemicals from two different natural sources and study their properties (Clement 91). The two natural sources used in this experiment were an orange (the peel contains limonene‚ which is a terpene) and a dichloromethane solution of clove oil (which contains eugenol‚ an acetogenin). To isolate the eugenol
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Osmosis Lab Report Hypothesis: Osmosis will occur when there is an uneven distribution of solute in a solvent. The higher the solute in solvent‚ then there will be a higher rate of osmosis through the diffusion gradient forming a hypertonic or hypotonic solution. Solvent with equal or no solute forms an isotonic solution. Materials: Distilled water‚ sucrose‚ dialysis tubing‚ string‚ 250 ml beaker. Procedure: To demonstrate and isotonic solution we needed 3 inches of dialysis tubing. We
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root tip of a plant spend a comparatively long time in the mitotic phase‚ whereas those cells comprising slow-growing tissues would spend most of their lives in interphase. Non-dividing cells remain in interphase and never enter the mitotic phase. (Lab Manual 64) Interphase is the synthesis of biological molecules including DNA and duplicated DNA with associated proteins. These comprise the chromatin that begin to condense toward the end of this phase‚ but are not yet visible. The nucleoplasm
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EXPERIMENT Materials 200 Toothpicks Timer Tape Controls 50 toothpicks per trial. 120 seconds per trial. The same brand of toothpicks. One toothpick broken at a time (except for Mutation Trial 2). One toothpick broken into two pieces equals one reaction. Broken toothpicks cannot react again. (Toothpicks can only be broken once) The toothpicks are broken between the thumb‚ index‚ and middle finger (toothpickase). Break two toothpicks at a time (Trail 3). Tape the index finger and thumb. (Trail
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Halobacterium Lab Investigation Mason Pirio 12/12/13 Period 5 Table Group 3 PS 2- Experiment Design PS 3- Conclusion Writing PS 13- Nitrogen Cycle Abstract- In this experiment we tested to see how well halobacterium grows in different levels of salinity. We found out that the higher salinity in the growth medium the better the halobacterium grows. Background Information- Halobacterium is a bacteria that is found in the great salt lake. Halobacterium is an extremeophile which means it thrives
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hydrogen peroxide for the boiled catalase. Do not boil hydrogen peroxide. Time how long it takes the filter to rise at each temperature. Record results in the appropriate data chart. Independent Variable : Temperature of enzyme catalase Dependent Variable : Rate of rising per second Controlled Variables : H2O2 depth‚ location‚ and filter paper Controlled Group : Water (No H2O2) How the temperature relates to the rise of filter paper Temperature H2O2 depth time
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