The mean hemolysis times of sheep erythrocytes in 0.3 M urea‚ thiourea‚ methanol‚ ethanol‚ propanol‚ ethylene glycol‚ diethylene glycol‚ and triethylene glycol were calculated‚ and paired‚ two-tailed t-tests were conducted to determine statistical significance. It was found that the difference in hemolysis time between methanol and ethanol was not statistically significant (P = 0.0666‚ t = 2.0577‚ df = 10); the same result was found between the results
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AS Applied Science Luke O’Reilly Aim/background- Test soil from an area that previously had heavy industry on it to check for contaminants. Procedure- I will first visit a site that has previously has heavy industry located on it. Using protective clothing‚ goggles and gloves I will extract several samples of the soil from the site and then take several other samples from different points on the site. This ensures variety of soil to ensure that all the site is safe‚ not just a small area where you
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The Catalase Lab Stephen Human Anatomy & Physiology 9/30/12 Problem- How do different environments affect the reactivity of catalase? Hypothesis- If more catalase is added then more oxygen (kPa) will be produced in a faster rate because there is more catalase to react upon. If less catalase is added then less oxygen (kPa) will be produced in a slower rate because there is less catalase to react upon. Variable- Independent- Amount of Catalase (Filter Paper) Dependent- Amount of
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The lesson is divided into 3 labs that can be completed in any order. After labs have been completed‚ facilitate a class discussion where students summarize and compare findings and relate how their findings support (or refute) Newton’s Laws of Motion LAB 1: How fast can it go? Put one car at the top of the ramp and let it roll down. Use a stopwatch to record the time the car rolled. Use this information to calculate the acceleration of the car. Measure the distance the car rolled using the
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The case of the test market toss-up Bill Horton sat alone in the office late Friday afternoon anxiously leafing through computer printouts‚ even though he could recite their contents from memory. Horton was waiting for his boss; bob Murphy‚ to report back the decision on a subject the marketing committee had been debating for more than fur hours. The issue whether paradise food should authorize national rollout of a new product‚ sweet dreams‚ to complement its established frozen specialty desert
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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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Biofuel Enzyme Kit Katie Adamson Biochemistry Laboratory‚ BIO124L 1/29/15 Abstract The objective in this lab was to determine the effects different conditions had on the enzyme cellobiase. We examined reaction rates in the presence or absence of an enzyme‚ the effects temperature and pH changes on the enzyme and the effects enzyme concentration and substrate concentration had on the enzyme. As expected results showed us that cellobiase works optimally when conditions are favorable. We see this
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closer the heart rate should be to the resting heart rate of the Daphnia. Possible errors that could have gone wrong are the duration given to allow for the absorption of the different concentration of salt solutions due to the limited time during the lab period and the distinguishing of the separate heart beats and the inaccuracy of a constant time being off by points of a
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5%‚ 27%‚ and 30%. The Vmax of the inhibited reactions was 1.208 mL/s and the Km was 7.033M (figures 3.3 and 3.4). Generally‚ reaction rate increased with substrate concentration. A paired t-test was performed comparing the velocities for the inhibited (exp. V) and uninhibited (exp. IV) reactions. This t-test presented a p-value of
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Bio Lab Report Erica Patterson September 10‚2013 Intro to cellular and molecular Biology Lab Abstract: In the Biology Laboratory Manual by Darrell S. Vodopich and Randy Moore are results to a similar experiment. The studied the hypothesis of carbon dioxide production by yeast fed sugar is not significantly different than the carbon dioxide production by the yeast fed in protein. Their hypothesis is the one that has helped formulate ours. We also will be answering the same to questions “What
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