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Osmosis Lab Report
4 pages (1000 words) , Download 1
The paper aims to consider the osmosis and diffusion. When the cellophane sack containing varying concentrations of glucose solution is placed inside the distilled water, because of the varying solute concentration on both sides of the membrane, the movement of the solvent molecule occurs. … Cells require the movement of the chemicals inside and outside the…
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Growth of Bacteria in Solutions
2 pages (500 words)
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The author of the essay "Growth of Bacteria in Solutions" explores bacterias behavior. According to the text, in a hypotonic solution, water concentration is higher outside the cell with the solute concentration being higher inside the cell. In this case, water enters the cell.… According to Levinson (2015), the scientific findings imply that the growth of…
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Membrane
4 pages (1000 words)
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Studying the impact of solute concentration on the rate of osmosis Introduction: Osmosis is defined as the movement of water molecules through a selective membrane (Freeman, 2010). Osmosis occurs so as to balance the water potential on either side of the membrane.… In animal cells, when the solute concentration is equal on both sides of the membrane, there…
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How desalination of seawater for use as drinking water relates to the principles of osmosis
6 pages (1500 words)
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Desalination of Seawater and Osmosis Name Subject Teacher Date               Desalination of Seawater and Osmosis With the increasing threat of overpopulation, there is also a threat to the available supply of fresh water in the world. Thus, in order to ensure a steady supply of fresh water, there is a need to tap into the sea, which is the greatest source of water on the planet.…
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Biol 232 Human Physiology - Answers to questions
2 pages (500 words)
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1. Use the above diagram and table to answer the following questions. Inside Artificial Cell Outside Artificial Cell 5 % glucose 10% glucose 5 % NaCl 5% NaCl a. Assume the membrane is permeable to both solutes, will NaCl move across the membrane? Explain your answer.… In this case, the concentration of solute inside the artificial cell is equal to the solute…
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The effects of salt solution on frog skin cell
3 pages (750 words)
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Osmosis is the movement of pure solvent from an area of low solute concentration to an area of high solute concentration through a semi-permeable membrane (Randal et al., 2001). Diffusion of water across a cell membrane is driven by osmotic pressure rather than requiring… Next to Stratum corneum layer is the Stratum granulosum, followed by the Stratum spinosum…
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Does the amout of Solution effect the Crystalization of Copper Sulfate
5 pages (1250 words)
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Does Concentration affect the Rate of Crystallization of Copper Sulfate? Professor Date The purpose of this investigation is to determine how concentration affect rate of crystallization of copper Sulfate. The variable in these experiment include; strength or concentration of copper sulfate which is an independent variable, rate of crystallization in a certain period of time which is a dependent variable, temperature as controlled variable and the size of containers and the volume of solution as constants.…
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Homeostasis-An Analogy
1 pages (250 words)
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Homeostasis: An Analogy Homeostasis: An Analogy (Date submitted) Homeostasis: An Analogy Homeostatic mechanism permits the body to maintain its internal and external mechanism even during extreme weathers.… The presence of veins and arteries in these places make it easy for them to do so. These receptors may then relay such signal to hypothalamus in the brain…
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How dialysis treatment for kidney failure relies on an understanding of the principles of diffusion
6 pages (1500 words)
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The dialysis procedure removes solutes and toxins from the blood. This procedure depends on the passive movement of water and solutes across a semi-permeable membrane.… Maher states that an infection or physical injury to the kidneys can affect the dialyzing ability of the kidneys. A malfunction of the human kidneys can lead to the accumulation of poisonous…
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Movement of substances across the cell membrane
7 pages (1750 words)
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In the paper “Movement of substances across the cell membrane” the author focuses on the transfer of substances across the different cells that make up the organism. One of the processes through which substances move across the cells in the organism is through osmosis.… In the hypertonic and hypotonic solutions, more water molecules…
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Hormones and Nerve Questions
13 pages (3250 words)
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HORMONES Why do you think secondary messengers are needed? Secondary messengers are molecules present inside cells which help communicate signals from the receptors on the surface of the cell to the target particles present inside the cell. First messengers would be considered useless without the help of the secondary messengers, because they do not cause any action (Anthony W.…
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Principle of physiology
6 pages (1500 words)
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This worksheet will refresh your generic skills required for practical report writing – referencing, graph interpretation and scientific writing. This… A marking rubric is provided. This is the guide that the markers are going to use to mark your practical worksheets. Study it carefully. You need to print one of these sheets and include with your…
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Diffusion and Osmosis Lab Report
10 pages (2500 words) , Download 1
For a cell to survive, the exchange of water from outside to cell to inside and vice versa is extremely important since water serves as the medium for transport of metabolic ingredients and byproducts. It can occur mainly through two biophysical processes, osmosis and diffusion.… The cell and its extracellular environments are fluid in that concentrations of…
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Investigate osmosis in blood cells
5 pages (1250 words)
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Introduction: The erythrocyte membrane accounts for 1 percent of total weight of the red cell, yet it plays an integral role in the maintenance of erythrocyte integrity. The red cell membrane and its skeleton provide the erythrocyte the flexibility, durability, and tensile strength to undergo large deformations during repeated passages through narrow microcirculatory channels.…
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Egg Osmosis
6 pages (1500 words)
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One of the more distinguishable features of cells is their semi-permeable plasma membrane, which increases efficiency of chemical processes and protecting it against other non-essential molecules. Because of this plasma membrane, water also moves dynamically into and out of the… Because of these changes that extracellular conditions may incur, animals such as…
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Exercise 9: Renal System Physiology Worksheet Assignment
3 pages (750 words)
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Submit this completed document by the assignment due date found in the Syllabus. Increasing the afferent arteriole radius from 0.55 mm… Renin-angiotensin system generates Angiotensin II that decreases the afferent arteriolar radius. The effect of angiotensin is mediated by calcium mobilization. To compensate for decreased afferent diameter, efferent…
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Cholesterol
2 pages (500 words)
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During the bromination of the cholesterol, bromine atoms are added to cholesterol to get rid of the double bond by forming… Cholesterol bromination can be used to purify cholesterol (Barton, Miller & Young 98). In most cases, oxidation refers to the addition of the oxygen atom to a substance. However, in organic chemistry, oxidation refers to the loss of bond…
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Vascular Access in Continous Renal Replacement therapy
5 pages (1250 words)
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Name: University: Course: Tutor: Date: Vascular Access in Continuous Renal Replacement Therapy Acute renal failure (ARF) also referred to as acute kidney injury alludes to sudden slowing of the kidney’s function resulting in elevation of plasma creatinine, blood urea nitrogen and reduced urine output (Rabindranath, Adams, MacLeod and Muirhead, 2007, p.…
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Answer 5 questions
5 pages (1250 words)
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(Name) (Professor) (Subject) (Date) Biology 1. Materials Science Some structural materials produced by animals include biological polymers and polymer composites. Ligaments are one example of these materials. The function of a ligament is to connect one bone to another.… It is made up of two proteins named fibroin and sericin. There are various mechanical…
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Partition coefficient log p (scientific lab report)
4 pages (1000 words)
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Order 506156 Partition coefficient log p (scientific lab report) Instruction: Paraphrase Deadline: 2011-02-25  Introduction Partition coefficient is the ratio of two-phased solute concentration. As a constant, it is defined as the concentration of solute in solvent A (CA) divided by the concentration of solute in solvent B (CB) expressed in this formula: P = CA / CB .…
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The Structure of Biological Membrane
8 pages (2000 words)
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It is well known that biologic membranes define the external boundaries of cells and regulate the molecular interchange across these boundaries. The biological activities of membranes are strongly connected with their physical properties, e.g. self-sealing, flexibility, and selective permeability to polar solutes.… However, membranes are not only passive…
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Hydrolysis of Phenyl Benzoate, Preparation of Cyclohexanol from Cyclohexene and Diels-Alder reaction of Maleic anhydride with Cy
10 pages (2500 words)
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Hydrolysis of Phenyl Benzoate, Preparation of Cyclohexanol from Cyclohexene and Diels-Alder reaction of Maleic anhydride with Cyclopentadiene Name Institution Experiment 1: Hydrolysis of Phenyl Benzoate Yield of Phenol: Weight = 52 g %Yield = 55% Yield of Benzoic acid: Weight = 0.798g %Yield = 65% Response to question 1.… Notably, all these reactions are often…
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Hydrolysis of Phenyl Benzoate, Preparation of Cyclohexanol from Cyclohexene and Diels-Alder reaction of Maleic anhydride with Cyclopentadiene
10 pages (2500 words)
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This reaction is often referred to as the acid-catalytic reaction (Borths, 2006). As widely cited, the hydrolysis of esters could be catalysed either through a base or… An acid can be established through the first reaction, with an extension of the second reaction. In the second stage, all the ester is changed into products of hydrolysis making the base…
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Hydrology; Cleanup Surfactant
12 pages (3000 words)
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Groundwater contamination as well as soil by petroleum products and organic solvents has become a significant environmental concern in the world today. These compounds tend to seep in the subsurface as NAPL (non- aqueous-phase liquid) or a separate organic-phase. When NAPL is… The residual organic liquid facilitates for an aquifer contamination. This takes…
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NUTRITION RELATED DISEASE
10 pages (2500 words)
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Food contains important nutrients, for example carbohydrates, proteins, fats, minerals or vitamins. The substance is taken into the body… There are two types of nutrients, macronutrients and micronutrients. Macro nutrients provide the bigger part of energy required by the organism’s metabolic functions, whereas micronutrients provide the required cofactors for…
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