Roy Levin Bio 11 Lab Dr.Izquierdo Analysis of Macromolecules in Tissue Homogenates of Bos taurusMaterials and Methods The homogenates provided were made by homogenizing tissues in a sucrose phosphate buffer in a 1:20 ratio. The protein concentration in bovine cells was measured by diluting the homogenate with a 1:5 ratio; 50 microliters of homogenate and 200 microliters of water. Then 5 known protein concentration samples which were 0.4‚ 0.8‚ 1.2‚ 1.6‚ 2.0 mg/ml of bovine serum were used to
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Lab Report: Toothpickase and Enzymes September 19‚ 2012 Olivia DePhillips Lab Partner: Joy Morgan Meyers Signature: Introduction Enzymes are biological molecules that catalyze chemical reactions. In enzymatic reactions‚ the molecules at the beginning of the process‚ called substrates‚ are converted into different molecules‚ called products. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates sufficient for life. Like all catalysts‚ enzymes work
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John Angelo F. Raule Marvin Reyes Mykee Domingo Aaron Santos Ralph Reyes LBYMATB V26B Report Title Of Activity: Yogurt Making Date Performed: October 4‚ 2012 I. Introduction Last October 4‚ the group performed an activity that involved making our own yogurt. The group prepared the materials and followed the procedures to make the said yogurt. In the activity paper that was given‚ it dictated that during the yogurt making process‚ the bacteria underwent fermentation. “Fermentation
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Adwoa Fosuah Bio Psych Lab Report 4 Cold Pressor Task Aim The cold pressor test is done by having the subject submerge their hands in a bucket of cold water to determine cardiovascular changes such as blood pressure and heart rate. For this experiment we wanted to know how long participant can keep their feet in the bucket of ice water before they experience any pain while looking at neutral and positive pictures and also rate the intensity of their pain. For this reason we hypothesized that
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Lab Report The Effect of Resting on Clothespin Squeezing. Hypothesis: If you rest then the clothespin squeezing rate will increase. Materials:- Clothespin Clock Sneakers Procedure: Separate class into two groups (exercisers and resters). Exercisers will do jumping jacks for a minute. Exercisers and registers will squeeze clothespin for a minute Repeat steps two and three. Total of three trails. Precaution: Shoes must be tied. Space between exercisers. Healthy exercisers
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Mechanical and Aerospace Engineering Department Polytechnic Institute of New York University ME6213 Introduction to Solid Mechanics 1.Buckling of Columns 2.Deflection of Curved Beams Date of Experiment:_______ Date of Lab Report Submission: _______ This lab report submission is approved by: Amith Deshmukh | Signature:_________ | Bhavesh Joshi | Signature:_________ | Anoop Kumar | Signature:_________ | Sriniket Srinivas Achar | Signature:_________ | Experiment 1 – Buckling of
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for the unknown forces applied through the utilization of this principle. We balance the system given the ample forces acting on it. In general‚ application of Newton’s Second Condition of Equilibrium is applied here. By applying it‚ we could get the magnitude of one force acting on it‚ considering the other forces of known magnitudes. Thus‚ if weight is one of the forces‚ we could really get the mass of that specific object. In the first part of the experiment‚ the first mass pan has 10 g weights
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extract (p < 0.05). These findings suggest that SF3 consisted of various individual compounds that have potential reducing power. As far as we know‚ this is the first report regarding cupric reducing activity in derived fractions from G. procumbens leaves. The antioxidant activity of plant materials or extracts is known to be associated with polyphenols and their chemical structures that contain hydroxyl groups acting as the primary antioxidant (Jun et al.‚ 2014). 2.5.2. DPPH• scavenging activity
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ABSTRACT. In this experiment‚ we test factors which affect friction. We pulled a wood block across a surface to determine whetherthe surface area ofthe block orthe type ofsurface affectsfriction. We found that the surface area of the block did not change the coefficient of kinetic friction‚ while the types of materialsin contact were directly related to the coefficient of kinetic friction. INTRODUCTION Friction is a part of our everyday life. Nearly every movement we make involves friction
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precipitated calcium carbonate. Calcium carbonate decomposes to calcium oxide and CO2 on heating. Treatment with dilute mineral acids produces corresponding calcium salts with liberation of CO2: CaCO3 + 2HNO3 Ca(NO3)2 + H2O + CO2(g) In this experiment‚ the mineral acid is added in excess to the calcium carbonate and the excess titrated against standard sodium hydroxide. This kind of titration is termed back titration. In this procedure‚ the analyte is consumed using excess titrant
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