Aim: the aim of this experiment is to find out if osmosis and diffusion will occur in an egg. Scope: The scope of this experiment is to investigate if osmosis and diffusion will occur to an egg once it’s put in vinegar for 2-3 days and then put in sucrose solution of different amounts (10%‚ 20%‚ 30% and 40%). 1.4 Hypothesis: My hypothesis relating to this experiment is that the eggs will gain weight and osmosis will occur through the semi-permeable membrane. 1.5 My idea about osmosis and diffusion
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a specific concentration of liquid and then clamped the other end. One with tap water‚ one with 20% sucrose‚ one with 40% sucrose‚ one with 60% sucrose and another with tap water. We then filled up the beakers with the liquid required‚ just enough so that it would cover the dialysis tubes when put in there. Beakers 1 through 4 were filled with tap water‚ while beaker 5 was filled with 40% sucrose. After both the beakers and the tubes were full we gently blotted the filled tubes to remove any access
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1B: Osmosis The materials used include 25-mL of these solutions: distilled water‚ 0.2M sucrose‚ 0.4M sucrose‚ 0.6M sucrose‚ 0.8M sucrose‚ and 1.0M sucrose‚ scissors‚ string‚ a balance‚ six 250-mL cups‚ and six 30cm strips of dialysis tubing. EXERCISE 1C: Water Potential The materials that were used included 50mL of distilled water‚ 0.2M sucrose‚ 0.4M sucrose‚ 0.6M sucrose‚ 0.8M sucrose‚ and 1.0M sucrose‚ six 250mL cups with lids‚ 4 potato cores for each cup‚ a balance‚ and paper towel. EXERCISE
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found in plants. It acts as a catalyst for the hydrolysis of sucrose. Sucrose is a disaccharide composed of glucose and fructose linked by a glycosidic bond. When this bond is cleaved in a hydrolysis reaction‚ an equal amount of glucose and fructose. Invertase is a significant enzyme because glucose is an important product of photosynthesis. Invertase is also used in the confectionery industry where fructose is preferred over sucrose because it is sweeter and does not crystallize easily. Enzymes
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carbon dioxide are produced. In this investigation‚ the rate of carbon dioxide production (cellular respiration) of yeast using different sugars and one artificial sugar will be measured. The natural sugars used in this investigation will be sucrose (table sugar) and lactose (in milk). The artificial sugar that will be used is aspartame (equal). The rate of respiration between the natural sugars will be compared to that of the artificial sugar. The molarity of the sugar will remain constant at
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increasing sucrose concentration Materials and Methods Effect of pH on Enzyme Activity Dependent Variable amount of product (glucose and fructose) produced Independent Variable pH Controlled Variables temperature‚ amount of substrate (sucrose) present‚ sucrase + sucrose incubation time Effect of Temperature on Enzyme Activity Dependent Variable amount of product (glucose and fructose) produced Independent Variable temperature Controlled Variables pH‚ amount of substrate (sucrose) present
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of diffusion takes place when the molecules in high concentration are too large to move through the membrane. Three factors that determine cell membrane permeability are shape‚ size‚ and polarity. For this experiment‚ it must be kept in mind that sucrose is not permeable to the cell membrane‚ for it is too large to pass through. The cell membrane functions to protect‚ separate‚ and regulate what goes in and out of a cell. It also allows cells to control their internal chemical environment and the
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The flour produced from the cassava plant‚ which on account of its low content of noncarbohydrate constituents might well be called a starch‚ is known in world trade as tapioca flour. It is used directly‚ made into a group of baked or gelatinized products or manufactured into glucose‚ dextrins and other products. Starchy foods have always been one of the staples of the human diet. They are mostly consumed in starch-bearing plants or in foods to which commercial starch or its derivatives have been
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concentration‚ of sucrose increased the rate at which Osmosis occurred would increase as well. Results Figure 1 The Change in Mass (g) of Osmosis Bags Over Time When Subjected to Various Conditions Bag 1 represents the control. The bag was filled with 5.5g of deionized water and then placed into 35 mL of deionized water resulting in relatively no change in mass due to equilibrium already being established. Bag 2 was filled with 5.6g of deionized water then placed into a 35 mL solution of sucrose with a
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Intro I am going to do an investigation into what concentration of sucrose solution would cause “Incipient Plasmolysis”. Theory Plasmolysis is the result of a (in particular) plant cell which has lost vast amounts of water. When this happens‚ turgor pressure within the cell has decreased to the point where the cytoplasm of the cell membrane peels away from the cell wall. When this begins to happen it is called Incipient Plasmolysis and when the cytoplasm is almost completely gone it is call “full/complete”
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