THE EFFECT OF THE WATER CONCENTRATION GRADIENT ON THE RATE OF OSMOSIS Investigation Folio: Summative Stage 1 Biology: SEMESTER 1 2014 MARCIA SHAW - 151003X INTRODUCTION Diffusion: is when something spreads more widely from a higher concentration gradient to a lower concentration gradient. Diffusion is the process from which molecules‚ atoms or ions mingle together and move from an area of high concentration to an area of low concentration as a result to their kinetic energy. for example
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PEARSON PRODUCT MOMENT CORRELATION COEFFICIENT Definition It is the measure of the linear correlation between two variables X and Y It is the measure of the strength of a linear association between two variables and is denoted by r. It tells you how strong the linear correlation is for paired numeric data e.g. height and weight. The Pearson correlation coefficient‚ r‚ indicates how far away all these data points are to this line of best fit. Development It was the imagination and idea of Sir Francis
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Introduction to Gas Turbines A turbine is any kind of spinning device that uses the action of a fluid to produce work. Typical fluids are: air‚ wind‚ water‚ steam and helium. Windmills and hydroelectric dams have used turbine action for decades to turn the core of an electrical generator to produce power for both industrial and residential consumption. Simpler turbines are much older‚ with the first known appearance dating to the time of ancient Greece. In the history of energy conversion‚ however
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about shell Royal dutch shell plc commonly known as Shell‚ one of the world’s largest oil & gas multinationalcompanies. It is an Anglo-Dutch company with headquarters in the Netherlands with its registered office in London‚ United Kingdom. It is the fifth-largest company in the world (and the second-largest energy company). It is vertically integrated and is active in every area of the oil and gas industry‚ including exploration and production‚ refining‚ distribution and marketing‚ petrochemicals
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Cell Size: Is Bigger Better? Problem: Why are cells small? Objective: To see the relationship between cell size and diffusion of materials. Hypothesis: If we cut three different sizes of cells‚ then the smallest one will survive the longest due to its sufficient permeable membrane. Cube | Total Volume (cm^3) | Surface Area (cm^2) | Index SA/VOL | 3 | 27 | 54 | .5 | 2 | 8 | 24 | .33 | 1 | 1 | 6 | .16 | Index of Cubes Cube Index SA/VOL Surface Area to Volume Cube | Total
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ChEMBL CHEMBL17564 RTECS number PA1490000 Beilstein Reference 1718732 Gmelin Reference 59 3DMet B01450 Jmol-3D images Image 1 SMILES [show] InChI [show] Properties Molecular formula CH4 Molar mass 16.04 g mol−1 Appearance Colorless gas Odor Odorless Density 0.6556 g L−1 Melting point -182 °C‚ 90.7 K‚ -296 °F Boiling point -164--160 °C‚ 109-113 K‚ -263--256 °F Solubility in water 22.7 mg L−1 log P 1.09 kH 14 nmol Pa−1 kg−1 Structure Molecular shape Tetrahedron Dipole
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using protein carriers. Examples of active transport are endocytosis‚ exocytosis‚ and phagocytosis. Passive transport does not require energy it is powered by the concentration gradient of the molecule. Examples of passive transport are diffusion‚ facilitated diffusion‚ filtration‚ and osmosis. In our Osmosis Lab I used a Grade a large egg from the grocery store. Its circumference is 5 ½ inches it is smooth with no cracks. I carefully place the egg in a clear plastic cup and fill the cup with vinegar
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Lab Report Diffusion is - One of two kinds of passive transport‚ - Diffusion can transport ions from higher concentration to lower concentration region without any other forces. - A net movement of molecules in and out of cell membrane - Diffusion can be affected by the steepness of the concentration gradient. Lab question: Is the rate of diffusion influenced by the presence of second molecule? Prediction: the rate of diffusion is influenced by the presence of second molecule
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Fluctuating Gas Prices Kyle Bonzelaar Davenport University Gas prices have been on a rapid rise the last few years and not many people are happy with it. It limits those on a budget for how much they can do and how much they are willing to drive. Lately‚ gas prices have been fluctuating in price and going up but are more recently going back down‚ which gives people a little more flexibility at times in their schedule. It lets people do things such as travel and more‚ that they were not able
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PhysioEx™ Lab: Cell Transport Mechanisms and Permeability Activity 1: Simple Diffusion Chart 1 Dialysis Results (Average Diffusion rate in mM/min) Solute Membrane (MWCO) 20 50 100 200 NaCl (—) 0.0150 0.0150 0.0150 Urea (—) (—) 0.0094 0.0094 Albumin (—) (—) (—) (—) Glucose (—) (—) (—) 0.0040 1) Which solute(s) were able to diffuse into the right beaker from the left? NaCl‚ Urea‚ Glucose 2) Which solute(s) did not diffuse? Albumin 3) If the solution in the left beaker
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