Introduction The movement of water molecules across a semi-permeable membrane is the process of osmosis. If there is a solute and a solvent‚ each containing different concentration levels‚ then the water would move along its concentration gradient until each side of the membrane are equal. The water moves because the membrane is impermeable to the solute and the solute concentrations may differ on either side of the membrane. Water molecules may move in and out of the cell‚ but there is no net diffusion
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San Miguel Corporation is one of the Philippines’ largest and most diversified conglomerates‚ generating about 6.5% of the country’s gross domestic product in 2013 through its highly integrated operations in beverages‚ food‚ packaging‚ fuel and oil‚ power and infrastructure. San Miguel is one of the nation’s largest employers‚ with a direct workforce of about 18‚000 employees. For each job created within the San Miguel system‚ many additional jobs are created through suppliers‚ distributors‚ retailers
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Practical 1- An experiment to observe the features of an Onion Cells Method: Gather all equipment that will be used for the experiment and check that they are clean and undamaged. Using forceps‚ peel the membrane from the underside of a small piece of onion. Place the membrane flat on a clean‚ glass slide and add one drop of iodine solution. Use a pin to carefully lower the cover slip over the slide‚ ensure there are no air bubbles before the use of the slide. Set the microscope to its lowest
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What pH Level Causes a Plant to Grow Best Alexis Chavez‚ Heather Nutt‚ Nguyen Phan Introduction We knew that water is normally stated as the best form of liquid to make sure plants grow as best as they can‚ but we wanted to know if causing the water to be more basic or more acidic would affect how the plant grew. Our hypothesis was that if the plant is treated with a pH of 12 then treated with another pH. Materials The materials used were three identical plants‚ that each had 4 sections that were
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The Effect of Salt Concentration on Osmosis in Potato Cells We should first explain what Osmosis is. It’s a passage of water from a region of high water concentration through membrane to a region of low water. Semi membrane is a very thin layer of material‚ which allows some things to pass through them but prevent other things from passing through. The cells allow small molecules like Oxygen‚ water‚ Carbon Dioxide‚ Ammonia. But will not allow larger molecules like Sucrose‚ Starch‚ or protein‚ etc
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Functionality At Various Ph Level Abstract Enzymes can be denatured at various ph levels in which then affects the shape of the enzymes structure and reactivity. The altering of shape causes substrates to not bind in the active site (Scott Freeman‚ Micheal Harrington‚ Joan. C Sharp‚ 2009). Amylase is used as a catalytic enzyme to determine the time period to convert starch into glucose monomers and transport into the bloodstream at different ph levels. Methods involved
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Amylopectin The absorbance value(x) read from cuvette containing starch and water represents the total amount of starch-iodine complex. The absorbance value(y) read from cuvette containing starch‚ water and α-amylase at the respective temperature or pH represents the amount of starch-iodine complex which is left after the enzyme has hydrolyzed the starch.In order to get the amount of product;P (maltose and glucose) formed‚ need to subtract the (y) value from the (x) value.
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Investigating Osmosis In Potato Cells Apparatus: The apparatus used in this experiment were: 1) 5 beakers‚ 2) 3 large potatoes (same type)‚ 3) 15 pieces of potato without skin (roughly the same size)‚ 4) 10 pins‚ 5) 50ml of distilled water‚ 6) 50ml salt solution 0.50‚ 7) 50ml salt solution 1.00‚ 8) 50ml salt solution 1.50‚ 9) 50ml salt solution 2.00 10) Scales‚ 11) Knife‚ 12) chopping board‚ 13) cork borer‚ Prediction & Theory: When the potato pieces are put in to the water there
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Investigation Into The Effect Of PH On The Activity Of Potato Tissue Catalase Aim The aim of my investigation is to see how pH affects the activity of potato tissue catalase‚ during the decomposition of hydrogen peroxide to produce water and oxygen. Catalase + 2H2O2 Catalase + 2H2O +O2 Catalase + Hydrogen Peroxide Catalase + Water + Oxygen Independent Variable The independent variable in this investigation is pH. Each individual enzyme has it’s own pH characteristic. This
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PH WANTS ACCESS TO SABAH STANDOFF VICTIMS MANILA‚ Philippines - Philippine diplomats have been sent to Sabah to assist Filipinos affected by thedeadly standoff between Malaysian police and supporters of the Sulu Sultanate‚ the Department of Foreign Affairs (DFA) said on Sunday‚ March 3. “We would like to see how we could work with local authorities in further assisting our nationals affected by the situation‚” DFA Undersecretary for Special and Ocean Concerns Jose Brillantes explained in a statement
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