Introduction: The purpose of experiment 1 was to demonstrate the principle of simple diffusion and understand how to make % solutions. Exercise 2 demonstrated the principle of osmosis: observing the movement of water by osmosis from an area of lower concentration of a solute to an area of higher concentration of a solute. Materials and Method: Refer to pages 47-51 of Bio 203L Lab Manual. Results/ Discussion: The effect of the chloride ion on its rate of diffusion in agar means it will diffuse
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cause infection and inflammation. The skin tissues in the infected area become red‚ hot‚ irritated‚ and painful. Risk factors for cellulitis include: • Cracks or peeling skin between the toes • History of peripheral vascular disease • Injury or trauma with a break in the skin (skin wounds) • Insect bites and stings‚ animal bites‚ or human bites • Ulcers from diabetes or a blockage in the blood supply (ischemia) • Use of corticosteroid medications or medications that
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Plant cells are eukaryotic cells that differ in several key aspects from the cells of other eukaryotic organisms. Their distinctive features include: A large central vacuole‚ a water-filled volume enclosed by a membrane known as the tonoplast maintains the cell’s turgor‚ controls movement of molecules between the cytosol and sap‚ stores useful material and digests waste proteins and organelles. A cell wall composed of cellulose and hemicellulose‚ pectin and in many cases lignin‚ is secreted by
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Tell Me About Blood 1.) What is the significance of lower-than-normal hematocrit? Lower-than-normal hematocrit indicates anemia. People with anemia do not have enough hemoglobin‚ which is the oxygen-carrying protein in red blood cells. Iron‚ B12‚ and folic acid deficiencies‚ some medications‚ and pregnancy can cause anemia. There are also more serious causes such as problems with the immune system that cause destruction of red blood cells earlier than normal‚ chronic diseases including
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Cardiovascular System: Blood Purpose Explain why you did this lab and what if any safety precautions needed to be followed. The purpose of this exercise is to gain knowledge and become familiar with the components of blood and blood cells. In order to do this‚ a prepared slide as well as a slide using my own blood were used. The different types of cells along with antigen-antibody
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Nick Work October 20‚ 3013 CSI: Intro to Biology Blood Sampling Objective Our Objective is to identify which blood type each sample is. We test Anti-A and Anti – B‚ and also test to determine if it is Rh positive or negative. Hypothesis We are testing unknown blood sample testing for what type of blood. When A is shown in the blood sample agglutination will accrue causing it to look grainy. Materials At least 4 dropper vial 3 blood samples Synthetic Anti – A Synthetic Anti –B Synthetic
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The understanding of blood spatter patterns is not a widely recognized forensic practice. Bloodstain pattern interpretation (BPI) is commonly used in murder investigations‚ but could be utilized in everything from simple assault to mass murders if the number of trained professionals increased. BPI can reveal critical information into reinventing a given crime scene. Everything from the number of blows‚ stabs or shots a victim was given‚ the movement that was undergone by the victim and assailant
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BLOOD DONATION MANAGEMENT SYSTEM SOFTWARE REQUIREMENTS SPECIFICATION BY P.LAVANYA (10BCE0366) E1 SLOT 1 Contents 1. Introduction…………………………………………………………………………………………………………………………………….4 2. Purpose……………………………………………………………………………………………………………………………………………4 3. Scope……………………………………………………………………………………………………………………………………………….4 4. References……………………………………………………………………………………………………………………………………….5 5. Overall Description………………………………………………………………………………………………………………………….6 6.
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the process of diffusion and be distributed throughout the coffee. Osmosis is movement of H2O molecules passing through a permeable cell membrane to the less concentrated solution‚ eventually to reach an equivalent number of molecules on both sides of the cell membrane. 1.2 The important factors in the process of diffusion and osmosis is H2O being present with soluble molecules that are small enough to be absorbed through the cell membrane to then be evenly distributed throughout the object. Temperature
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written by the author Sandra Cisneros. It is basicially about Rachel (main character) when it was her eleventh birthday she didn’t even feel eleven. Sometimes she felt like 10‚ 9‚ 8‚ 7‚ 6‚ 5‚ 4‚ or even 3 years old. In school‚ she was told to keep a red sweater left over for months that wasn’t hers at all. She was in trouble during class when she didn’t put on the sweater that wasn’t hers. Many times growing up in life is hard and tough and sometimes you don’t expect to know. As the story explains
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