Experiment 1 Background Diffusion is a process‚ in relation to the spontaneous movement of molecules from an area of high concentration‚ to an area of low concentration down a concentration gradient. It is a type of passive transport method‚ that requires no cellular energy (ATP). This movement occurs‚ until a state of equilibrium has been established on both sides of the membrane. The diffusion of molecules happens at cellular level‚ through a cell membrane via the pores. The cell membrane
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Change in Precipitation Ramon Pena BIO101 February 14‚ 2011 Dr. Richard Steiner Change in Precipitation Introduction This experiment will take course during a 300-year-time -period simulation. This experiment will consist of two islands‚ Darwin Island‚ Wallace Island and take only into account the bird population of these two islands. The parameter will stay the same‚ except for one variable; precipitation. I will record how the precipitation changes the beak size of the bird population
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9 grams of copper 2.9 grams of iron Masking tape Permanent marker Procedures 1. Fill all six jars with water so that they are nearly full. It may be helpful to use a measuring cup to make sure that each jar has exactly the same amount of water. 2. Attach a vertical strip of masking tape to the side of each of your test tubes (for marking the water level)and using the permanent marker‚ make a mark on the tape about 1 cm down from the mouth of the test tube. This will be the outside water level
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Title Experiment with a spiral spring (Oscillation) Objective 1. To show how the time of vertical oscillation depends on the load 2. To determine the spring constant 3. To determine the effective mass of the spring Introduction In this experiment‚ it is to show how the time of vertical oscillation depends on the load‚ to determine the spring constant and to determine the effective mass of the spring. An ideal spring is remarkable in the sense that
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treatments for alleviating jet lag: 1) doses of Vitamin B complex; 2) 10 minutes of meditation; and 3) 15 minutes of aerobic exercise. Each suggestive treatment is complete with a reasonable physiological rationale. I have come up with an experiment to test the 3 variables to figure out what treatments if any will work the best. My hypothesis is that all 3 of the suggestive treatments when done before flying on an airplane‚ will reduce the effects of jet lag. Experiment: A commercial airplane traveling
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Introduction Milgram Experiment Method 40 men were recruited for a lab experiment investigating “learning”. In exchange for their participation‚ each person was paid $4.50. After the WWII‚ Stanley Milgram a psychologist of Yale University posed a question‚ “Could it be that Eichmann and his million accomplices in the Holocaust were just following orders? Could we call them all accomplices? These men were introduced to another participant who were actually actors. These men were given role
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Mark John Paul V. Caneso PSY 101 – P July 4‚ 2013 Critical Thinking Paper Chapter 1 – re: Stereotypes‚ Athletes‚ and College Test Performance (page32) 1. In this experiment‚ what might be some extraneous variables affecting the students’ test performance? 2. What might educators do to try to prevent the effect of the “dumb jock” negative stereotype on college athletes? The experiment done by Jameson‚ Diehl‚ and Danso‚ attests that a negative stereotype‚ being referred to as a “dumb jock”
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variables 1. Volume of hydrochloric acid 2. Temperature of surroundings 3. Type of acid used 4. Type of agar blocks used List of materials/equipment Uncertainty of apparatus No. Apparatus/equipment Quantity Uncertainty(±) 1 10.0cm³ measuring cylinder 1 0.1 cm³ 2 25.0cm³ measuring cylinder 1 0.5cm³ 3 100cm³ measuring cylinder 1 1 cm³ 4 Ruler 1 0.05cm 5 Stopwatch 1 1s 6 Beaker 5 - 7 Thermometer 5 0.2°C 8 Bunsen Burner 5 - 9 Scalpel 1 - Procedure
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immortalized line of T-lymphocyte cells (Jurkat). The objectives of this research are as follows: 1- Does kola nut extract inhibit leukemia? 2- Does the growth in inhibition induced by kola nut extract fellow a dose- and time- dependent response? 3- Does kola nut extract induce apoptosis or necrosis? 4- Which cell line‚ a K562 or Jurkat cell line is more sensitive to this targeted extract? 4-METHODOLOGY 4-1 Study design The design of our study is a type of case-control design‚ where the induction
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sometimes showing biological symptoms in response to toxicity exposure. (1). In this experiment‚ three Daphnia magna were treated with three different drugs to measure the change in their short-term cardiac function; ethanol‚ caffeine and nicotine. Ethanol‚ found in drinking alcohol is a
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