NAME:__________________________________ STUDENT#:______________________________ YORK UNIVERSITY FACULTY OF SCIENCE AND ENGINEERING SC/BIOL 3130N (3.0) – MOLECULAR BIOLOGY II MIDTERM I – January 31st‚ 2012‚ VERSION A INSTRUCTIONS: 1) Please sign the sign-in sheet that will be circulated during the exam. 2) Multiple choice – 12 questions‚ one mark each. Choose the best single mostcorrect answer and fill in all answers on the scantron sheet provided. Questions where more than one answer is selected
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Prior to begin the experiment‚ preparation for some solutions is required to enhance the lab performance. The solutions needed are standardized potassium bromate‚ standardized sodium thiosulfate‚ and starch indicator. First‚ to prepare a starch indicator‚ pulverize 1g of soluble starch and add 15mL of water to make it as a paste-like substance. Dilute it with about 500mL of boiling water‚ and continue to heat until the mixture becomes clear. Cool it to room temperature and save it into a stoppered
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Largest Landfill in the World Soon going to the will no longer be a vacation option unless you do not plan to swim. There will probably be a huge amount of plastic and trash in the water. This is due to the Pacific trash vortex. All of the plastic that has accumulated over the years had either eended up in a landfill or in the ocean. It is however‚ more likely that the trash has ended up in the ocean. Trash that people just toss in the water ends up in the ocean. Americans fail to
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LABORATORY REPORT Activity: Blood Glucose Regulation Name: Jazmine Ricine Parham Instructor: Professor Deno Date: 12.03.2014 Predictions Plasma glucose levels will be highest immediately after the meal (0 hr) Plasma ketone levels will be highest 1-3 hours after the meal Plasma insulin levels will be highest immediately after the meal (0 hr) Plasma glucagon levels will be highest before the meal (fasting) Materials and Methods Dependent Variable plasma levels of glucose‚ ketones‚ insulin‚ and glucagon
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Using Freezing-Point Depression to Find Molecular Weight Formal Lab Report Purpose: The purpose of this lab is to be able to use the freezing point of a substance to find the molecular weight of it. To do this‚ we will use the Logger Pro program to obtain the freezing point of lauric acid and a solution of benzoic acid and lauric acid. Then‚ we’ll go calculate the freezing point depression of the solution and the molecular weight of benzoic acid. Procedure Summary: Obtain lab goggles
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Mercury - Smallest and innermost planet. Venus – Second planet from the sun. Rotates in the opposite direction than most other planets. Earth – Third planet from the sun. Known as the only planet to harbor life. Mars – Fourth planet from the sun and the second smallest in the solar system. Jupiter – The fifth planet from the sun and the largest in the solar system. Saturn – Sixth planet from the sun. Only planet with a ring around it. Uranus – Seventh planet from the sun. Third largest planetary
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I. Time Context September 1993. II. Viewpoint Mr. Ricky Bautista‚ President of Vive Chem Philippines. III. Major Policy Statement VCP is a manufacturing company set up by a group of chemists and chemical engineers involved in developing new products primarily for industrial use. They develop a variety of personal products such as hair care products‚ colognes‚ and deodorants. The company looks to be one of the leaders in facial care industry in the next 10 years. IV. Current Operation Plan Finance:
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If you have ever considered losing weight‚ you have probably heard of the various kinds of diet pills available. Diet pills claim to "melt away the fat." They sound like the perfect solution to shed a few pounds‚ but research tells a different story. Diet pills became popular in 1996. The most common ingredients were Redux and fenfluramin/phentermine‚ which posed as appetite suppressants. The pills seemed to suck up the fat‚ and people were losing anywhere between 25-50 pounds in months. The FDA
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Kinetic Molecular Theory Basic Concepts The gas laws developed by Boyle‚ Charles‚ and Gay-Lussac are based upon empirical observations and describe the behavior of a gas in macroscopic terms‚ that is‚ in terms of properties that a person can directly observe and experience. An alternative approach to understanding the behavior of a gas is to begin with the atomic theory‚ which states that all substances are composed of a large number of very small particles (molecules or atoms). In principle‚ the
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Biology Planning Exercise June ‘04 The Uptake of Glucose in Yeast Cells Glucose is absorbed across the cell surface membrane (plasma membrane) of most cells. A convenient way to investigate this is to use a solution of glucose and a suspension of yeast cells. The amount of glucose taken up from the glucose solution by yeast cells in a fixed length of time can be measured. At the end of the fixed length of time‚ further uptake of glucose is prevented by transferring the yeast suspension to
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