catalase activity. First‚ 50 μl of liver of extract was added along with 1 mL of water in four test tubes. Then placed 1 mL of hydrogen peroxide four other test tubes. Each test tube of catalase was placed in four different degrees celsius (0‚ 26‚ 37‚ 100) for up to 5 minutes. After the time was up‚ hydrogen peroxide was poured from the second set of test tubes into the first set. Then the thickness of the foam layer of each tubes were
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Instructor Biology 1111 4-5 Lab Topic 4: Microscopy Elodea Cells at ___X Elodea Cells at ___X Report Sheet—Lab Topic 4 1. Draw and label each of the organisms available. Cheek Cells at ___X Cheek Cells at ___X Name _______________________________ Date_____________ Instructor ___________________________ Section___________ _________________________ 4-6 Lab Topic 4: Microscopy 2. Fill in the following table: Compound Microscope Dissecting Microscope Types of Light Available Powers
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Submit your completed lab report to the Lab: Photosynthesis Lab assignment link for grading. For information on how this assignment will be graded‚ please visit the Course Information sectionChlorophyll and Accessory Pigments A pigment is any substance that absorbs light. The color we see comes from the wavelengths of light that reflect. Chlorophyll‚ the green pigment common to all photosynthetic cells‚ absorbs all wavelengths of visible light except green. The green reflects back to our eyes
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graduated cylinder‚ 50 mL graduated cylinder‚ small and large test tube‚ 50 mL and 150 mL beakers‚ 50 mL Erlenmeyer flask‚ digital top-loading balance‚ unknown liquids for density determination‚ irregular solids for density determination‚ safety glasses‚ Lab manual that was used for measurement. Introduction The International System of Measurement (SI) is used worldwide and has been adopted as the official system of measurement by most countries. It is commonly called the metric system. Our traditional
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was higher than the actual melting point of pure aspirin; 135°C. The phenol test showed that the product is not a pure aspirin by expressing purple color. TLC results weren’t high enough to conclude that the product was a pure aspirin. Overall‚ the lab wasn’t successful due to the low percentage of aspirin that were produced. Out of 2.0 grams of aspirin‚ only 0.7862 grams of pure aspirin were produced. So the percent yield was only 39%. Errors could be made during filtration process and the melting
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Data Table 1: Experimental Data Experiment Stage Total Mass of NH4Cl (g) Volume of Water (mL) Crystallization Temperature (°C) Convert to: g NH4Cl 100 mL H2O 1 2g 5.0 44°C 40g NH4Cl 2 2.2g 5.0 50°C 44g NH4Cl 3 2.4g 5.0 57°C 48g NH4Cl 4 2.6g 5.0 61°C 52g NH4Cl 5 2.8g 5.0 66°C 56g NH4Cl Data Table 2: Experiment Results Solubility of NH4Cl (g/100 mL H20) Crystallization Temperature (°C) 40g NH4Cl 44°C 44g NH4Cl 50°C 48g NH4Cl 57°C 52g NH4Cl 61°C 56g NH4Cl 66°C Data Table
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Exercise 7 REPORT FORM NAME: Aaron Olson Table 1. Record of the population sizes of all species in a community after 200 weeks according to type of simulation. Species All predators present All predators absent Without Whelk Without Chiton Without Starfish Only Whelk Only Chiton Only Starfish Algae 1 (Nori) 100 2 62 95 6 6 1 75 Algae 2 (Black pine) 152 2 98 139 7 12 0 119 Algae 3 (Coralweed) 211 1 161 275 16 29 1 212 Mussel 185 1482 83 254 1182 1129 1365 67 Barnacle 1 (Acorn) 160 9 493
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Radial Immunodiffussion (RID) Christian Crespo 18 October 2013 Immunology Lab Report Purpose of the Experiment: The objective of this experiment is to quantitatively observe the foundational reaction in our Immune system; the Antigen-Antibody interactions. The Ouchterlony procedure is what will be used in this lab to detect nature of the antibody interaction. The orientations of the band will provide more information about the interaction of antibody and antigen
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necessary to produce a temperature change of 1°C per gram of substance. The specific heats of different substances vary‚ and therefore this quantity may be useful in identifying an unknown. The measurement of heat changes is called calorimetry. In this lab activity‚ calorimetry will be used to determine the specific heat of an unknown metal. This will be done by using a styrofoam cup calorimeter containing water. A calorimeter is insulated so as to minimize any loss of energy to the surroundings. Therefore
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were prepared by other lab groups. These standards were used to obtained a series of calibration curves. We then prepared the monster energy drink‚ by warming 20 mL of the monster energy drink on a hot plate in order to expel CO2 and filtered the warm liquid through filter paper in order to remove any particles‚ after making sure the monster energy drink was cooled to room temperature; 4.00 mL were pipetted into a 100-mL volumetric flask. 10.0 mL of 0.10M HCl were added to the 100-mL volumetric flask
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