synthesis‚ and in fireflies‚ also known as lightening bugs‚ bioluminescence (Biology Book). Bioluminescence is the process in which living organisms convert chemical energy into light (Branchini‚ 2008). In the fireflies case the reaction involves the enzyme luciferase which lights up a lantern-like mechanism under the tip the wings and attached to the end of the body of the firefly. It is presumed that the firefly uses the lantern to attract a mate. The goal in this experiment was to test the effect
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media The filtrates obtained from above experiment were used for extraction and estimation of citrinin. Briefly‚ the citrinin was extracted thrice with chloroform (1:1 v/v). All the three extractions were pooled and concentrated in vacuum at 40°C using a rotary evaporator. The crude extract was then diluted in minimum amount of chloroform (2ml) and citrinin was estimated by thin layer chromatography (TLC) according to Razak et al.[16] Subsets of citrinin obtained were estimated by High performance
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Investigating the Enzymatic Activity of Catecholase through Temperature‚ pH‚ Enzyme Concentration‚ and Substrate Concentration University of Alabama at Birmingham Burgess‚ B.N. Introduction: Background Enzymes are macromolecules that act as catalysts in living organisms by speeding up chemical reactions without being changed or destroyed by the reaction (Campbell and Reece‚ 2008). Enzymes are able to speed up the rate of a chemical reaction by decreasing the activation energy during the reaction
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Lab Report: To investigate the effect of temperature of the permeability of cell membranes DCP (Data Collection and Processing Section) Raw Data Absorbance of the colored beetroot solution at 565 nm of different temperatures of 30℃‚ 40℃‚ 50℃‚ 60℃‚ and 70℃ Temperature (℃) (± 0.1℃) Absorbance of the colored beetroot solution at 565 nm (± 0.001 AU) Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 30 0.160 0.129 0.136 0.135 0.128 40 0.481 0.343 0.376 0.491 0.410 50 0.386 0.597 0.378 0.743 0
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CO2 Lab Report Intro Alka-Seltzer tablets are used to treat cold/flu symptoms as it produces CO2 when dissolved in water. The goal of this lab is to calculate the amount of NaHCO3 is needed to produce enough CO2 gas to fill the room. Experimental One Alka-Seltzer tablet was weighed on the analytical balance. Then a piece was measured out to be between 0.21 and 0.28 grams. 500mL of distilled water was added to a 600mL beaker. 80mL of water was mixed with 20mL of 6M HCl in a 150mL beaker. A
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Anxiety Lab Report Abstract: The aim of this study is to investigate the relationship between cognitive anxiety‚ somatic anxiety and self confidence in two different situations; non-stressful and stressful. It is to examine the effects on anxiety of a simple golf putting task. The stressor used in this experiment can be described as situational‚ namely the stressor of social comparison‚ the type of stressor that leads many performers to question their own ability which in turn evokes symptoms
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Abstract: Bacteria consists of a large domain of prokaryotic microorganism in which can fight of antibiotics allowing the bacteria to become antibiotic resistant. In this lab report‚ we discover the most effective disinfectant that would work best in killing the harmful bacterial strain‚ Bacillus subtilis. KB testing or disc diffusion antibiotic sensitivity testing is measured through the diameter in millimeters to find how resistant the antibiotic to the bacteria. The hypothesis of Windex fell correctly
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during the lab session Procedure Part A This lab was performed by the group members as they closed both low and high flow rotameters (Fig-2) and filled the tank with water. Then‚ the large rotameter was opened when the water in the tank had reached the internal baffle‚ so the flow from the tank was reduced by doing so. One member was in charge of adjusting the level of the water so it was always maintained over the baffle’s level during the lab (Fig-1). The first part of the lab was done
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IB Chemistry Experiment 4 Composition of a Post-1983 Penny Lab Report Background: Through the use of percent composition one can easily find out how much of a certain element is in a compound or an item such as a post-1983 penny. The experiment will be using HCl a strong acid to dissolve all the zinc inside the outer copper shell. The reaction follows as such; Zn+2HCLZnCl2+H2‚ but there will be no reaction with copper. The portion that will be measured is the mass of copper left after all of
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In this lab we employed various assays utilizing a biuret reagent‚ coomassie brilliant blue reagent‚ and ultraviolet light in order to determine the identity of six unknown solutions and the concentration of a bovine serum albumin sample. We were given three samples that lacked protein‚ and three samples containing proteins‚ and using a spectrophotometer we assessed the amount of light absorbed versus the light transmitted‚ based on the principles of the Beer-Lambert Law. The three proteins used
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