Osmosis The purpose of this lab is to study how membranes of plant and animal cells react when exposed to different solutions. The first experiment involves purple onion skin and the second involves rat blood in various solutions. I needed to understand certain terms before preforming this lab to be able to efficiently explain what is happening to the cells. Diffusion is the tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated area.
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xxx1 xxxxxx Ms. xxxx Biology 20 November 2013 Osmosis Lab Problem: What’s the order of the concentration for each solution and how does it affect the movement of water? Hypothesis: Experimenter thinks the order of the solutions according to their concentration is D‚A‚E‚C‚B‚ from smallest. And the water will pass through semipermeable tubing bag from low to high concentration to thin the concentration inside the bag. Osmosis is a diffusion of water particles and is one of the passive transport
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is divided into several well-defined sections. Each section must be present in a complete report. To earn an outcome point for the laboratory report‚ a student must submit a formal lab report that earns a score of at least 90/100. Each error (factual‚ grammatical‚ typographical‚ spelling) results in a deduction of 5/100. Several opportunities will be offered through the second half of the semester for students to submit a successful report. Sub-par reports may not be resubmitted for regrading. The
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PsychSim 5: HUNGER AND THE FATRAT Date: 1/27/15 This activity provides a simulated experiment on weight regulation in rats. The Hypothalamus • What are the two techniques used to study hypothalamic dysfunction? How do they differ? The two techniques used to study hypothalamic dysfunction are stimulation and destruction. To simulate the hypothalamus a small wire probe is inserted into the hypothalamus and a weak but constant current is passed through its insulated tip. Generally‚ simulation makes
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Lab 4 Part 1: 10 points Assignment: Create an Internet and E-mail Acceptable Use Policy Learning Objectives and Outcomes Research and compare Internet and e-mail use policies enforced by other organizations. Create an Internet OR e-mail use policy for an organization. Assignment Requirements You are a networking intern at Richman Investments. An employee of the company used employer-owned equipment to access the Internet and check his personal Web-based e-mail account. He followed a
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of this industry look like? Which company is best-positioned—Netflix or Blockbuster? Why? 4. What key factors will determine a company’s success in the movie rental industry in the next 3-5 years? 5. What is Netflix’s strategy? Which of the five generic competitive strategies discussed in Chapter 5 most closely fit the competitive approach that Netflix is taking? What type of competitive advantage is Netflix trying to achieve? 6. What does a SWOT analysis of Netflix reveal about the overall
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T&P 5-9 1. The patient has a pH of 6.96‚ pO2 of 12‚ and pCO2 of 54. 2. There is a 1.0 x 0.5-cm area of avulsed tissue and a 3-cm gaping deep laceration of the chin. 3. Lungs: Clear to P&A. Heart: Not enlarged; A2 is greater than P2. There was a grade 1/6 decrescendo early diastolic high-frequency murmur. 4. Cycloplegic refraction: OD = +3.25 + 0.75 x 125 =20/30-1. 5. The patient received a 6000-gamma roentgen dose. 6. Iodipamide sodium I-131 was used. 7. We used a concentration of 5 x 105/mL.
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Unit 2 Home Labs Goals: • Read Safety • Perform Changes: Physical or Chemical Lab • Perform Special Physical Properties of Matter Lab • Perform Paper Chromatography Lab Turn-in: 1) Changes: Physical or Chemical Lab - Completed Procedure / Observations‚ questions‚ and a written description of most important concept that you learned in the discussion section. 2) Special Physical Properties of Matter Lab – Completed Procedure / Observations‚ questions‚ and
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The Great Antacid Culminating Lab Purpose: To determine which antacid tablet is the most effective. Materials: 3 different antacid tablets‚ thymol blue‚ droppers‚ pH probe and necessary cables‚ pH probe holder‚ retort stand‚ 1 mol/L HCl‚ droppers‚ five 150 mL beaker‚ mortar and pestle‚ graduated cylinder‚ balance‚ weighing dish‚ stir rod Procedure: 1) Gather all the equipment you will need to do the lab. You will be working in groups of 3 2) Calibrate the pH probe as you practiced the day
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Centralia No 5 On March 25‚ 1947‚ the Centralia No. 5 coal mine exploded near the town of Centralia‚ Illinois‚ killing 111 people. The Mine Safety and Health Administration of the United States Department of Labor reported the explosion was caused when an under burdened shot or blown-out shot ignited coal dust. In this paper‚ I plan to discuss Driscoll Scanlan‚ who was the inspector for the district for the area. “Scanlan was a stubborn‚ righteous‚ zealous‚ man of fierce integrity” (Stillman
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