sweetener alternative to sucrose (common table sugar) first introduced to the food and beverage industry in the 1970s. It is not meaningfully different in composition or metabolism from other fructose-glucose sweeteners like sucrose‚ honey‚ and fruit juice concentrates. HFCS was widely embraced by food formulators‚ and its use grew between the mid-1970s and mid-1990s‚ principally as a replacement for sucrose. This was primarily because of its sweetness comparable with that of sucrose‚ improved stability
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Their preference for these sweeteners vary depending on their concentration. To understand the specific concentration of sucrose preferred by Drosophila‚ we exposed them to a serial dilution of sucrose. After obtaining the concentration of sucrose that is most preferred‚ we created a serial dilution of quinine with this concentration to examine whether Drosophila could detect different concentrations of quinine. Since aging in humans
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tissue in sucrose solutions of different concentrations and measuring the changes in mass of the apple cores. The changes in mass reflect the movement of water into or out of the tissue. After determining the concentration of sucrose solution at which there is no net gain or loss of water from the apple tissue‚ the osmotic potential can be calculated. This will then tell the water potential of the apple cells. Research Question and Hypothesis: How will changing the concentration of sucrose in solutions
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min intervals of each concentration. The first tube showed very little weight change. However all other tubes show a greater change the concentration could be the factor that determines the permeability of the sucrose. The sucrose molecules are too large to pass through. Figure 1b- sucrose concentration determines the weight change. In this case based on our results as concentration increases the percent weight change is decreasing. Discussion: The purpose of this lab was to observe and analyze
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solution (distilled water‚ 0.2 M sucrose‚ 0.4 M sucrose‚ 0.6 M sucrose‚ 0.8 M sucrose‚ and 1.0 M sucrose) into separate bags. Tie the other end of the bag‚ leaving sufficient space for expansion. Record the initial mass for each bag in grams. Then‚ fill the cups with distilled water. Place each bag in one cup and label each cup with each solution. After 30 minutes‚ remove the bags from the water. Finally‚ record each bag
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Yeast and Sugar - The Chemistry must be right Jansen‚ C. Gymnasium Felisenum‚ The Netherlands 14-04-2010 Summary Yeast can metabolize sugar in two ways‚ aerobically‚ with the aid of oxygen‚ or anaerobically‚ without oxygen. In this experiment yeast ferment sugars anaerobically. When yeast ferments the sugars anaerobically‚ however‚ CO2 production will cause a change in the weight of the sugar/yeast-solution. This raises a further question: What is the effect of different kinds of sugars
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permeable membrane. An osmotic system is established when a semi-permeable membrane is placed between two solutions. In this biological systems context‚ osmosis is the exchange of water between the potato cell and the surrounding medium of varying sucrose concentrated solutions‚ with the plasma membrane being the semi- permeable membrane. Because water molecules have kinetic energy‚ they are constantly moving around in gaseous or liquid form‚ moving randomly from one place or another. The greater the
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Fats and Oils TCP FST4826 1 Vegetable oil • • • • • • • • • • TCP Coconut oil Corn oil Cottonseed oil Olive oil Palm kernel oil Palm oil Peanut oil Rapeseed oil Soybean oil Sunflower oil 1. Palm oil 2. Soybean oil 3. Rapeseed oil 4. Sunflower oil 5. Palm kernel oil 6. Cottonseed oil 7. Peanut oil 8. Coconut oil 9. Olive oil 10. Corn oil FST4826 2 WHAT IS A FAT? • Chemical units commonly called "triacylglycerols" • “Lipids" - triacylglycerols‚ mono- and diacylglycerols‚
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to reach equilibrium. Step 2: My hypothesis was that the bag with 60% sucrose then it would be heavier than the bag with tap water or 30% sucrose. I thought this because I thought that there would be more of a substance change in 60% sucrose. Section 3: Methods First get 3 pieces of the same length of tubing then get 6 pieces of string. Fold one half of the tube over and tie the end with string. Then add 5 ml of 30% sucrose solution in the tubes. Squeeze the bag gently to release air fold it over
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We will investigate how the mass of the potato chips change in different sucrose solution concentrations. We will use osmosis to do this. I will be measuring and controlling many different variables‚ these include; - The dependent Variable Weight of potato chip Independent Variable Concentration of sucrose Control Variables consist of; - 1. Temperature 2. Surface area of potato 3. Volume of sucrose solution 4. Same time for each potato chip submerged in solution 5. Potato
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