weigh less due to osmosis. Our null hypothesis was: If the pH level of a solution is either acidic or basic‚ then it will have no effect on the weight. The independent variable was the different solutions of different pH values. The dependent variable was the weight of the potato‚ which was measured in grams. The baseline of this experiment is the weight of the potato when in the milk solution because milk has a neutral pH. The controls in this experiment are that each sample had
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The purpose of the lab was to investigate osmosis‚ which was successfully achieved because there was a change in the potato’s mass which was due to the net movement of water either into the potato cells or out of the potato cells. In the 0.400M solution‚ the potato decreased in mass‚ this was due to the reason that the solution was hypertonic. There was a higher concentration of solute and lower concentration of water in the solution than there was in the potato cells. This led the water to travel
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In this experiment‚ we 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
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09-17-10 Period 5 The Broken Eggs POW #1 1. Problem Statement: A farmer has some eggs in a cart‚ and is going to market them. She accidently breaks every egg. She doesn’t remember how many she had‚ but she remembers some things. She knows that when she put them in groups of 2‚ 3‚ 4‚ 5 and 6‚ there was one egg left over. When she put them in groups of 13 no eggs were left over. You need to find out how many eggs there are in total. 2. Process: I first thought
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Broken Eggs By Randall.KA farmer went to the market and broke all of her eggs! She needed to figure out how many eggs she had. She put her eggs in different groups. She put them in groups of 2‚ 3‚ 4‚ 5‚ 6‚ and 7. When she tried to put the eggs in groups 2 through 6 she had one egg left over‚ but when she put the eggs into groups of seven she didn’t have any left over. How many eggs did she have? Are there more than one possibility?When we attempted to find the amount of eggs she had‚ we took
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Osmosis Lab: Potatoes and Elodea Background Information: Cells have a need to regulate their internal environment. They need to be able to this because cells often find themselves in environments where the concentration of dissolved solids outside the cell is different from the number of dissolved solids inside the cell. Since the solids can not move across the membrane‚ the cell responds by moving water either into or out of the cell in an attempt to balance the number dissolved particles.
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opportunity to achieve success and prosperity through hard work‚ determination‚ and initiative”‚ but the sad part about the American dream is sometimes that’s all it lives up to be. This seems to be the case in the short story “The Egg”. In this short story‚ “The Egg”‚ the egg seems to be an image more than a title. It endorses the idea for a chance at a new life and a chance to get rich. In this story the mother seems to be the one picking at the idea of this life‚ she does so by telling the father
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Osmosis of a Potato cell. Hypothesis is that the potato in saltwater is going to show that it will break down the cells of the potato. Osmosis is the diffusion of a solvent through a semi-permeable membrane‚ from a solution of low solute concentration to a solution with high solute concentration‚ up a solute concentration gradient. Net movement of solvent is from the less-concentrated to the more-concentreated.‚ which tends to redure the difference in concentrations. This effect can be countered
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Within a matter of weeks it will be Easter time. Eggs will not only be hidden for little children to find but an egg is a symbol of life. Eggs are often the prime example used in a Christian Sunday school to visually explain the Resurrection of Jesus. The eggs shell represents the stone that separated his tomb from the outdoors. When the hard shell barrier cracks‚ or in this case when the stone is rolled away‚ life comes into the world. In the Etruscan tomb of the Lioness lays a Banquet scene fresco
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The Human Egg Cell. The human egg cell is also known as the ovum. With a spherical structure it is the largest cell in the human body measuring about 0.2mm in diameter. The function of the ovum is to reproduce‚ when fertilized by the sperm cell the ovum is capable of creating a new living organism. The size and shape of the ovum gives it space to store and create nutrients (see fig 3) (Boyle and Senior 2008) The ovum is bounded by the egg follicles of the ovaries and is produced by primitive germ
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