I am going to investigate osmosis when potato is placed in different concentrations of sucrose. I am aiming to witness osmosis in 5 different concentrations of sucrose. I will use 5 varying concentrations so that I have a wider spread to compare the results‚ and check that I don’t have any anomalies Prediction Osmosis is the process of diffusion of water molecules from a weaker solution into a stronger solution‚ through a semi permeable membrane. The tiny pores in the membrane
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Osmosis in Potato Tubers Andrew Dickson Background When a plant cell is bathed in a solution of the same concentration (isotonic) as its intracellular environment‚ its mass and volume remain the same. This is because water enters and leaves the cells at the same rate. There is no net loss or gain of water by osmosis. Samples of cells can be placed in a range of solutions of different concentration. The cells will gain water by osmosis when placed in solutions which are more dilute (hypotonic)
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How do our Reactions to Obstacles and Hardships Help to define us as Individuals? As our fragile minds go through adolescence and on to adulthood‚ we face obstacles that are put in our way that shape and define us as human beings. Some people tend to crack under the pressure others trudge through it challenging and pushing themselves to their limits. We aren’t always alone we have people that are there to help us along the way and sometimes they leave their mark on you like on the last shot in
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Chlamydia is the most common bacterial sexually transmitted infection (STI) in Canada. When left untreated‚ it can lead to painful physiological problems and sterility defects. Despite being in decline for many years‚ rates of chlamydia infection have risen steadily since 1997. These rising rates show that people are not using safer sex methods on a consistent basis. This STI is transmitted through vaginal‚ anal‚ or oral sex‚ and can also be transmitted from mother to child during childbirth. Chlamydia
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11) What are the roles of professional accountants in relation to their compliance to the By-Laws of the Malaysian Institute of Accountants as in this case? Integrity Integrity means that the auditor must always carry out their auditing duties and responsibilities with the highest level and sense of integrity. Their work must be performed with diligence‚ responsibility‚ and complete sincere truthfulness. The auditor should not involve themselves in any illegal activities that can bring down their
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Osmosis Experiment Diana Arrowood Grand Canyon University BIO-100L Biology Concepts September 16‚ 2011 Osmosis Experiment Directions Use the information below to complete the Osmosis Experiment. Materials 1 fresh baking potato Water Salt Four small containers (i.e.‚ drinking cups or clear glasses) A metric ruler Methods and Procedure 1) Place 1 cup (236 ml) of water in each of the 4 containers. In 2 of the containers‚ add 1 tablespoon (14.8 ml) of table salt and mix well until
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Osmosis is the net movement of water from a high concentration of water to a low concentration of water down a concentration gradient. This is done to equalise the solute concentrations on the two sides. Therefore‚ in other words‚ the movement of water is depended on the concentration of dissolved solute in the water (in this case the sucrose) and if there are a higher concentration of sucrose in the visking tubing‚ the water in the beaker will move into the visking tubing to make both solution balanced
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Osmosis and Diffusion Lab Observations: Diffusion: | Before | After | Color of liquid sack | clear | blue | Color of liquid in beaker | dirty yellow | golden | Glucose present Stick Test | no | yes | Color of the test stick | No change in color | Green | Osmosis: | Fresh | Salt | Beginning mass of potato | 2.51 | 2.16 | Texture of potato | Dry | Dry | Overnight mass | 3.12 | 1.84 | Overnight Texture | Hard‚ strong | Squishy‚ pliable | Data and Analysis: Diffusion:
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How are cells affected by the movement of water? they expand Hypothesis (What do you think will happen to the egg after the three days? Be sure to give a reason for your hypothesis.) i think the shell of the egg will dissolve and the egg will expand in the liquid. Data and Observations Time (hrs) Observation s Circumference (cm) 0 its a raw hard egg 8cm 24 the shell of the egg has dissolved 8.5cm 48 its bigger than the size before. has a smooth glide to it. 9cm
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