compared to the inside of the cell e.g. 0m sucrose) that the net movement of water into the cell will increase. This is due to the water potential being greater outside the cell compared to the inside of the cell‚ therefore water will diffuse into the cell by a process of osmosis. The opposite however will occur when the water potential outside the cell is lower than that inside the cell (i.e. with hypotonic solutions‚ such as a solution with a sucrose concentration of 1m and 0.75m). This is due
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Conductivity Lab | Did conduct | Did not conduct | Solid sodium chloride | | | Solid sucrose | | | Distilled water | | | Alcohol | | | Tap Water | | | Distilled water and sodium chloride | | | Distilled water and sucrose | | | Alcohol and sodium chloride | | | Alcohol and sucrose | | | Questions: 2). Did any of the liquids conduct an electric current? If so‚ which one(s)‚ and please explain why or why not thoroughly? The tap water contains ions
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Lab Report Purpose: Osmosis and diffusion through potato core in different concentration (viable) : The concentration of solution in a solution will affect the movement of water across potato cell membrane Material: Potato core Sucrose solution (0.2‚0.4‚0.6‚0.8‚1.0) Electronic Balane Test tube and rack Scalpel Plastic Weighing tray Cork Borers Method: Day 1 use you cork borers to bore 6 vertical hole on your potato. remove the potato cylinders from
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Biology Course Work MyungJae BAEK (10Bio02) Do NOT delete anything I have written in red. Make any corrections in blue so I know what to re-read Osmosis Diffusion is the net movement of particles from an area of high concentration to an area of low concentration. Then what is osmosis? Basically‚ osmosis is the same action with diffusion but in water. To describe more precisely‚ osmosis is the net movement in water across partially permeable membrane‚ which mean the membrane allows
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white‚ NaCl‚ glucose‚ or sucrose. The equipment used was: 5 dialysis tubing‚ a scale‚ bekers‚ water‚ egg white‚ sucrose‚ glucose‚ NaCl‚ and 5 cups. We put the five dialysis tubing filled with one of the five substance into a cup filled with one of the substance: water‚ egg white‚ NaCl‚ glucose‚ or sucrose. Then we let them sit in there for 30 mins then took them out of the cups and remassed them. Our results were: Original Mass of dialysis tubing Water Sucrose Glucose NaCl
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6) Finally‚ tube 7 was prepared the same way as tube 4; with 1mL yeast‚ 1mL sucrose‚ and then filled to the top with buffer. 7) After each tube was prepared‚ it was swirled to prevent settling. They were then carefully placed in fermentation chambers and inverted. 8) Fermentation chambers 1 through 6 were placed into the same candle
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Sucrose was successfully transformed into D-glucose and D- fructose (disaccharide to monosaccharides) through acid-catalyzed hydrolysis. This is obvious when comparing the experimental specific rotations of sucrose and invert sugar with the theoretical values of sucrose (+66.5°) and invert sugar (-39°). However‚ my partner and I experienced a small complication with the addition of the
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had to demonstrate the process of osmosis using potatoes‚ and to determine the concentration of the cytoplasm of the potato. To demonstrate this‚ we had 6 test tubes and poured in different sucrose solutions of the following concentrations: 0.0M‚ 0.1M‚ 0.2M‚ 0.5M‚ and 1.0M. Once added in with all the sucrose solutions‚ we added in the 6 cylindrical potatoes of equal diameter and length. Before and after putting it in the potatoes‚ we had to weigh the initial and the final mass of each potato. After
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conducted to determine the impact different sugar types have on yeast fermentation. It was hypothesized that glucose‚ sucrose and fructose would all produce energy through yeast fermentation‚ but that sucrose would have the greatest rate of energy production. The carbon dioxide production was tracked in the fermentation of yeast with solution of no sugar‚ glucose‚ fructose‚ and sucrose over a period of twenty minutes. All of the sugars produced energy‚ but glucose was the most efficient of the three
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water for a longer period of time‚ then more water will travel through the selectively permeable membrane due to the effects of diffusion on the solution. If the level of sucrose within the solution increases‚ then the effects of osmosis will cause the change in mass to also increase due to higher concentrations of sucrose and the increased net movement of the water molecules within the solution. Analysis - When the glucose and starch solution was placed in the beaker of water for 25 minutes‚
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