Daphnia and Additives Lab Purpose The purpose of this lab is to test what effect of Nicotine‚ Acetylcholine‚ Epinephrine‚ Caffeine‚ and Ethanol on an organism’s heart rate. Materials * Microscope * Eye dropper * Pipet * Cotton balls * Depression slide * Beakers * Daphnia * Water * Five additives: Nicotine‚ Acetylcholine‚ Epinephrine‚ Caffeine‚ Ethanol Procedure 1. Put on safety goggles. 2. Catch a living Daphnia. 3. Transfer to a depression
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understand the photosynthetic process to help enhance the efficiency and quality of life on Earth. By fully understanding the function of photosynthesis‚ some environmental adjustments can then be made to refine the photosynthetic process. In this lab specifically (Lab No. 7)‚ we isolated specific color wavelengths and recorded the rate of photosynthesis in comparison to the unaltered rate of photosynthesis
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LAB 4 1.List four cell structures that were common to both plant and animal cells. (4 points) a.What structures were unique to plant cells? (2 points) b. What structures were unique to animal cells? (2 points) 2.List five structures observed in the cell images and provide the function of each structure. (5 points) a.Structure 1 and function b. Structure 2 and function c.Structure 3 and function d.Structure 4 and function e.Structure 5 and function 3.The student is observing a single-celled
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One of the main learning experiences of this lab is to learn the importance of calibrating a sensor. In most cases‚ a sensor will not have an output that is exactly what you need. An example of this is a strain gage. A stain gage gives back a voltage‚ but with that given voltage a distance can be found. Introduction: In this experiment‚ the QNET-MECHKIT was used. This board has multiple compact sensors that can be used for experiments. For this lab we will be using the strain gage to find the
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Helicopter Lab (Print and Due Monday) Problem: If we change the length of a paper helicopter’s wings‚ what length of wing will make the helicopter fall slowest? Hypothesis: If we increase the length of a helicopter’s wings then it wall fall slower because the wings will spin slower. Procedure: Materials: • Scissors • 3 Paperclips • Stop Watch • Ruler (metric) • Helicopter paper template(5cm X18cm) Step by Step: 1.) Gather Materials
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Metallographic Observation Metallographic Observation Group # 26 Group # 26 Me 230: Control of Properties of Materials Me 230: Control of Properties of Materials Department of Mechanical and Mechatronics Engineering University of Waterloo Instructor: Caroline Hanson Date: 4‚ April‚ 2013 Department of Mechanical and Mechatronics Engineering University of Waterloo Instructor: Caroline Hanson Date: 4‚ April‚ 2013 Introduction Engineers study the properties
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Abstract: For the first part of this lab we refluxed different Carboxylic acids and alcohols in the presence of a acid catalyst in order to form Esters by Fischer Esterification. These Esters had different pleasant smells that we then evaluated. In the second part of the experiment‚ we broke the ester bonds of a triglyceride in order to form glycerol and carboxylate salts. This process is known as Saponification because it produces amphiphilic molecules that allow soap to remove dirt from the surface
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one element equal to the number of electrons gained by atoms of another element. You then balance the rest of the equation by inspection. SECTION 12.3 REVIEW 1. Determine whether each of the following reactions is a redox reaction: a) H2(g) + I2(s) → 2HI(aq) b) 2NaHCO3(aq) → Na2CO3(aq) + H2O( ) + CO2(g) c) 2HBr(aq) + Ca(OH)2(s) → CaBr2(aq) + 2H2O( ) d) PCl5( ) → PCl3( ) + Cl2(g) 2. Write three different definitions for a redox reaction. 3. Explain why fluorine has an oxidation number of
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Lab 17 Amino Acids and Proteins Lab date 10/22/2013 12-1350 I Purpose The purpose of this experiment was to separate mixtures of II Method For a complete list of experimental procedures see prelab outline attachment #1. “For a complete list of experimental procedure see Seager‚ Spencer L. and Slabaugh‚ Michael R. Safety-Scale Laboratory Experiments for Chemistry for Today General‚ Organic and Biochemistry; Thomson Brooks/Cole‚ Belmont‚ CA‚ USA‚ 2008; pp.221-225”. III Data Part A Mass
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MATERIAL AND METHODS Stability of cell membrane using pH For the lab experiment for testing the stability of beet cell membranes using pH‚ many materials were used as follows. Obtaining a beet we punch out cores‚ using a cork borer. After washing the cores we put each one inside a separate test tube‚ and added a different pH solution in each one. After 3 minutes in these exposure solutions‚ we took the beet out with a dissecting needle. Then transferred each beet to a separate test tube containing
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