The Blood Circulatory System The Circulatory system is a system in the bodies of all organisms that moves the nutrients that are needed as well as gases and wastes to and from cells and helps fight unwanted bacteria and other diseases. It also helps alleviate the body temperature to maintain homeostasis‚ which is the property of either an open system or a closed system in a living organism. It brings the body’s cells what they need in order to survive – oxygen and nutrients. The center of the circulatory
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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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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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Desalination of Seawater Project Paper The main concept of this Desalination process is reverse osmosis‚ but we will get into that later. Right now what is probably running through your head is what exactly is desalination. To put it simply desalination is the process to make seawater or otherwise undrinkable water safe to consume. This can be accomplished through a variety of methods such as the simplest but one of the ones that requires a lot of money would be distillation. Distillation is commonly
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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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conditions do cells gain or lose water? Did water move into the cell or out of the cell while it was surrounded by hypotonic solution? The water moved into the cell‚ because there was less water inside the cell than outside (there were fewer water molecules inside). 2. In which direction did the water move though the cell membrane when the cell was surrounded by the hypertonic solution? The water moved out of the cell because there was a higher concentration of water inside the cell than outside
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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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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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Determining the Rate of Osmosis with Water and Sucrose 10/3/2012 Determining the Rate of Osmosis with Water and Sucrose Author: Results: Bag 1 had a rate of osmosis equal to 0.01 grams per minute. Bag 2 had a rate of osmosis equal to 0.0543 grams per minute. Bag 3 had a rate of osmosis equal to 0.0471 grams per minute. Bag 4 had a rate of osmosis equal to 0.0886 grams per minute. Bag 5 had a rate of osmosis equal to -0.0914 grams per minute (Figure A). Figure A: Shifting of mass
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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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