WATER OUR LIFELINE Water is a transparent fluid which forms the world’s streams‚ lakes‚ oceans and rain‚ and is the major constituent of the fluids of living things. As a chemical compound‚ a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water covers 71% of the Earth’s surface.[1] It is vital for all known forms of life. On Earth‚ 96.5% of the planet’s water is found in seas and oceans‚ 1.7% in groundwater‚ 1.7% in glaciers and the ice caps of Antarctica
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giving an hour of your day? I wasn’t aware of how many people I can help until there was a blood drive at my high school. The blood drive was run by the ARUP Blood Services and I learned a ton about donating blood. Before you donate you can talk to a representative and learn more about donating blood. I learned that the blood donated can be stored for about 28 days until it goes bad. The phlebotomist told me blood donations are given to several patients who need transfusions to live. If there are many
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fundamentals of science. Title An investigation of an onion cell using a light microscope. Aim: The aim of this investigation is to identify the cells within an onion skin using a light microscope. An onion cell is a plant cell which through the light microscope‚ it should outline the cell wall‚ cell membrane and the nucleus. Introduction: Plant cells have a cell wall and cell membrane which animal cells do not have. The cell wall provides support and is relatively rigid‚ which consists of
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CELL THEORY – STEM CELLS Stem cells are a large focus of study in today’s biomedical world. “They are cells that exist in an undifferentiated state‚ and transform into differing tissue types depending on what the cells surrounding them are‚“ (National Institute of Health‚ 2012). Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth. In addition‚ they also serve as an internal repair mechanism inside many tissues‚ dividing without
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edu/database/documents/pdf/tree_fact_sheets/sabpala.pdf Sabal palmetto is a very easy plant to manage. It requires either sun or shade in order to be successful. It can easily adapt to saline waters (brackish waters)‚ also succeed in dry‚ sandy soils. New seedlings and its root system redevelop from the base line of the boot and commands sufficient water and constant warm soil temperatures. http://lee.ifas.ufl.edu/Hort/GardenPubsAZ/Cabbage_palm.pdf “They grow in groups of a few specimens to several hundreds or even
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Management in Blood Banks Harshal Lowalekar and N. Ravichandran Operations Management and Quantitative Techniques Area Indian Institute of Management Indore 18.1 What is Blood? Blood performs many important functions in the human body such as carrying oxygen and nutrients to the various cells and tissues of the body‚ waste removal‚ fighting against diseases‚ regulation of the body temperature‚ regulation of body acidity‚ etc. [1‚ 2]. Blood contains three different kinds of cells: red blood cells (RBCs)
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------------------------------------------------- Water and Electrolytes Water constitutes 50-55% of a woman’s body weight and 55-60% of man’s weight. Water gives structure and form to the body‚ helps maintain body temperature‚ and also creates the necessary environment for cell metabolism. There are two compartments of body water‚ extracellular and intracellular fluid. Extracellular fluid (ECF) is water found outside of cells. Making up approximately 20% of total body weight‚ the ECF consists of blood plasma‚ interstitial
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Cell Membrane Transport The purposes for these experiments is to be able to understand osmosis and its relationship to tonicity of solutions‚ and the transportation of molecules across cell membranes. It’s also used to understand‚ and how temperature affects diffusion. You also learn how to test for presences of starches and sugars in solutions. In the first exercise I will be testing for diffusion through an artificial membranes. This one has forty five steps to it. I will not go into
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Unit 10: Blood/Immunology Case Study Lab What were your three diagnoses? 1. Case 1: Pernicious Anemia 2. Case 2: Normal Blood Smear 3. Case 3: Malaria Journal Questions for lab 1. In what ways do normal red and white blood cells differ? Many red blood cells circulate in the bloodstream‚ while the white blood cells leave the blood. 2. Which type of white blood cell would you expect to be most common in a normal blood smear? Neutrophils 3. A differential
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Blood Composition. The following are components of blood - red blood cells‚ white blood cells‚ platelets and plasma (the liquid component). Red blood cells are the pinky white circles‚ the white blood cells are the big red blobs. Red blood cells do not have a nucleus because they do not divide and multiply Red blood cells are bi-concave‚ they are donut shaped. Red blood cells contain a pigment called haemoglobin which can react with oxygen to form the unstable compound‚ oxy-haemoglobin. Hb+4O2
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