IB 15-16 Course Selection Guide Part 2 Go next page for the answers! Hong Kong Programme Name Subject requirement Minimum grade suggested Bachelor of Economics Math HL IB Score: 36 Bachelor of Accounting Mathematics SL IB Score: 36 Bachelor of Social science No specific requirement IB Score: 35 Bachelor of Business administration and Law Eng lit HL and Math SL IB Score: 40-41 Bachelor of architecture Math
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plant physiologist‚ Wilhelm Pfeffer. Ten years prior‚ Moritz Traube prepared the first recorded synthetic membrane that was made from a precipitated film of copper ferrocyanide. It was not until almost two hundred years later that the process of osmosis was revisited and extensively reviewed by researchers from the University of California at Los Angeles. In 1959‚ Sidney Loeb and Srinivasa Sourirajan developed a membrane made from cellulose acetate‚ which removed at least ninety percent of salts
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CELLS All living things are made of cells‚ and cells are the smallest units that can be alive. Life on Earth is classified into five kingdoms‚ and they each have their own characteristic kind of cell. However the biggest division is between the cells of the prokaryote kingdom (the bacteria) and those of the other four kingdoms (animals‚ plants‚ fungi and protoctista)‚ which are all eukaryotic cells. Prokaryotic cells are smaller and simpler than eukaryotic cells‚ and do not have a nucleus. Prokaryote
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Biology 1010 8/27/13 Life: * Order: Pine Cone‚ Bacteria – where things are * Regulation: Regulate their internal environment * Maintain homeostasis * Ex. Breath‚ too much CO2‚ changes pH Sends message to brain * Growth and development: Definite pattern to growth and development * Directed by DNA (genetic material where the genes are found) * Energy processing: All organisms must have energy * Humans: Food (Heterotrophs = other-feeding (fungi and
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You may be wondering what diffusion‚ tonicity‚ osmosis and semipermeable membrane is. I’ll start off by explaining semipermeable membrane. A semipermeable membrane relates to the dialysis lab #1 because in dialysis tubing is considered semipermeable barriers. Semipermeable membrane is a membrane that allows passage of some particles but not others. (Lab manual) Diffusion on the other hand‚ is a form of passive transport where particles move down their concentration gradient from a region of high
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Effect of Sucrose Solution on Osmosis Aim: The aim of the experiment is to show how varying the concentration of sucrose solution affects osmosis by changing different molar solutions of sucrose and water and how it affects the potato. Introduction: In this investigation I will be exploring the effect of varying concentration of sucrose sugar solution on the amount of activity between the solution and the potatoes. Osmosis is the movement of water molecules across a partially
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few terms we will use along the way. Osmosis is the movement of a solvent (as water) through a semipermeable
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Embryos Survive Stem Cell Harvest Pg. 2 Embryos Survive Stem Cell Harvest Pg. 2 Prevent skin cancer cause by the UV rays with the new Eucerin sun block cream protector Prevent skin cancer cause by the UV rays with the new Eucerin sun block cream protector November‚ 2012 issue November‚ 2012 issue The CELL-O Magazine by mariana carroll and esteban cruz The CELL-O Magazine by mariana carroll and esteban cruz Pg 4 How to prevent cancer? There are a lot of ways to
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potatoes. The concentration of free-moving water molecules is higher in potato cells‚ the cytoplasm of the cell is hypertonic. The water molecule will flow from higher concentration to lower concentration‚ so that they get out of potato cells through osmosis. The plasma membrane of plant cell will collapse as the water inside the cell become less and less‚ that cause plasmolysis and the cell become flaccid. 2. A salt water fish may die if placed in fresh water. Why? In order to keep an isotonic condition
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amount of sucrose concentrations. The higher molarity concentrations increased the movement of water to balance out the inside of the tube and the beaker. The greater amount of concentration gradient‚ in each tube‚ increased the rate of osmosis. This rate of osmosis is due to the net movement of water from an area of low concentration to an area of high concentration. Because the tubes had different concentrations‚ certain tubes gained more mass than others. Solution A had 0.6 molarity which increased
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