Tim Readmond AP Biology Lab Report I. Title a. Modeling Diffusion and Osmosis II. Introduction a. If one places a 1.0 M solution of glucose inside a bag and then places that bag into a beaker containing a 1.0 M solution of sucrose‚ the percent of mass lost in the bag is 10.5%. The solution in the bag is hypertonic while the solution in the beaker is hypertonic‚ which is why water moves from the bag to the beaker and the bag loses mass. b. The purpose of this experiment is to see whether
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Title : Investigation of Action of Saliva and 3M HCl in Two Carbohydrates Solutions. Objective : To investigate the action of saliva and 3M hydrochloric acid in two carbohydrate solution. Result : Table 1 : The presence of starch and reducing sugar in the solution Observation Conclusion Solution A Benedict’s test : The transparent blue solution turns into opaque brick-red precipitate Iodine’s test : The clear colourless solution turns into transparent yellowish-brown
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diabetes during ice age (younger dryas) and people nowadays are more frequently diagnosed with diabetes from November to Freburary‚ when it is colder. Natural selection survival rule-LOSE THE FINGER‚ SPARE THE LIVER. (Frostbite) Brown fat stores glucose and produces by burning sugar Wood frog-protects its organs by freezing solid. Ice wine-frozen grapes-the shrunken nature of the grapes is due to water loss-the less water in grapes‚ the fewer ice crystals there are to damage the delicate membranes
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95 The blue coloured solution remains unchanged. The blue coloured solution remains unchanged as well. Discussion : In the experiment‚ the enzyme amylase was involved. Amylase breaking down the starch suspension into maltose and maltose into glucose when HCL was added into solution B .This is because solution B was hydrolyzed and the H+ ions present break down the bond in between molecules of the solution B. Saliva
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like non-cancer cells‚ utilize glucose as a primary energy source. Not only do cancer cells utilize glucose‚ but they take up the molecule in large quantities. This was explained decades ago by Otto Warburg‚ resulting in what is now referred to as the Warburg Effect1. The Warburg Effect explains how cancer cells alter their glucose metabolism to accommodate the rapid and uncontrolled division they undergo. In both cancer and non-cancer cells usually take up glucose from the environment‚ and it
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* 20% Glucose * 20% Lactose * 20% Sucrose * 20% Maltose * Distilled water * Brom Thymol Blue (BTB) * Spectrophotometer * Measuring cylinders. Procedures: 1. The spectrometer is set to 565nm. Distilled water is used to set the reading to the pure level. 2. 8mL of 20% glucose is placed in the beaker using a measuring cylinder. 3. 1ml of Brom Thymol Blue (BTB) is added into a respective tubes using a pipette. 4. 4ml from the mixture of Glucose and BTB
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Proteins are also made up of these base elements but it also contains nitrogen (N). Carbohydrates have the general formula [CH2O]n (where n is the number of repeating units). The main function of carbohydrates is short-term energy storage (such as glucose). A secondary function is intermediate-term energy storage (as in starch for plants and glycogen for animals). In addition‚ some carbohydrates are involved as structural components in cells‚ such as cellulose in the cell walls of plants and chitin
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PHYSIOLOGIC VALUE OF FOOD Organic compounds * Protein * Lipids * Carbohydrates * Vitamins Inorganic elements * Water * Minerals Vit & min * Act as a catalysts which prompt the 3 major nutrients –carbohydrates ‚ protein‚fats METABOLISM * “Metabolismos”-to change or alter * Chemical process of transforming foods into complex tissue elements and of transforming complex body substance into simpler ones‚ along with the production of heat energy * Is the totality of the
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process of enzyme digestion. Materials: * 1 small beaker * 2 large beakers * 2 cut pieces of soaked dialysis tubing * 2 dialysis tubing clamps or pieces of twine * 2 clean plastic pipettes * 1 bottle of Lugol’s solution * 2 glucose test strips Procedure: Begin the experiment by placing 4 full pipettes worth of cooked starch in a beaker. Then‚ use a second clean pipette to add 4 full pipettes worth of α-amylase to the beaker and stir to simulate food mixing with saliva in the
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substrate is accepted by the enzyme‚ the end result is a product. This product becomes the substrate for the next enzyme in the pathway. (Wolfe‚ 2000) Importance of Aldolase B Enzyme -Glucose and fructose are the components that make up sugar (sucrose). -In order to make ATP (energy)‚ glucose and fructose need to go through glycolysis and enter the Krebs cycle. -Fructose needs enzymes to break it down further‚ before it can enter the glycolysis process. -Initially‚ fructose is
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