Osmosis is a passive movement of water through a selectively permeable membrane moves from an area of higher concentration to an area of lower concentration. In this lab‚ we can determine the direction of diffusion of small molecules by measuring the diffusion of small molecules through dialysis tubing. This tubing acts as a selectively permeable membrane‚ and allow to pass larger molecules slowly. Introduction: Cells have kinetic energy and it causes the molecules of the cell to move around
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Green Eggs and Ham Growing up‚ it was common for children to be familiar with the well-known children’s picture book “Green Eggs and Ham” written by the famous author Dr. Seuss. This famous story was written “when someone challenged him to write a book using 50 words or less” (Baldassarro 2). The gist of the book “Green Eggs and Ham” is it is about a character called “Sam I Am.” Sam’s goal in the book is to try and get his roommate who is very grouchy and negative to try green eggs and ham in different
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experiment was finalized the vinegar solution enlarged the eggs mass. Before the vinegar solution it was 55.1 grams and after the solution it was 67.9 grams. The volume of the egg was also increased. At the beginning it was 50 mL after the solution it was 60 mL; it had a 10 mL difference. It is visible that a hypotonic solution was present. This rejects the hypothesis made. When the egg was placed in 150 mL of vinegar and left intact overnight the egg did sink to the bottom and remain that way‚ however
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Microbiology is a field of science which typically is divided into several areas such as: bacteriology‚ virology‚ parasitology and immunology. The goal of microbiology is to increase the specific knowledge of a known microorganism and by extension counter the spread of harmful microorganisms and to learn practical applications of research results. A microbiologist studies the structure‚ metabolism‚ genetics and ecology of microorganisms such as bacteria‚ viruses‚ fungi or algae. A microbiologist
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Osmosis The purpose of this lab is to study how membranes of plant and animal cells react when exposed to different solutions. The first experiment involves purple onion skin and the second involves rat blood in various solutions. I needed to understand certain terms before preforming this lab to be able to efficiently explain what is happening to the cells. Diffusion is the tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated area.
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Boiled eggs; I believe all of you know boiled egg….. How many methods of preparing boiled egg is known to you? Today I am going to teach you a new method………. Using 4 mobile phones‚ 4 pre-recorded tapes & an egg Connect 4 mobile phones to pre-recorded tapes and keep them were live with an egg in the middle. After around 80 minutes‚ the egg will be found to be hard-boiled. This was an experiment conducted by Punjab University‚ India on impact of electromagnetic radiation of cell phones
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Question 1: How does Osmosis works It refers to the movement of water molecules from an area of high-level water concentration‚ that is‚ a dilute solution‚ to an area of low-level water concentration‚ that is‚ a strong solution through a semi-permeable membrane. (Passmyexams.co.uk‚ 2015) Actually‚ water moves in a bi-directional manner with the aim of leveling up the concentration. However‚ a high number of water molecules move from the fresh water towards the salty water. The outcome
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I. Purpose The purpose of this lab was to see how an egg would react through a chemical reaction if it were to be added with an acid and a base. II. Materials 1 egg 400 mL beaker Citric acid Baking Soda Water Food coloring (optional) Stirring rod III. Procedure 1. Crack open and separate egg by pouring yolk back and forth between egg shell halves with the whites in the beaker 2. Add 5.0 grams (1 tsp) of citric acid 3. Add 5.0 grams ( 1 tsp) of baking soda 4. Put 2-3 drops of
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while the other two potatoes remained firm. There was also an awful odor that only came from the potato in the tap water. Conclusion: The hypothesis was correct. The 40% salt solution killed the sailor. This solution was hypertonic which causes osmosis to move the water out of the cell. The sailor then became too dehydrated and died. Salt absorbs water‚ which is why drinking salt water is not good for
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The Egg-Drop Device Process The process of dropping an egg is more complex than a normal person would believe. The egg-dropping process requires knowledge of history‚ engineering‚ and mathematics and physics. To fully understand how an egg drops‚ the knowledge of the history of physics‚ the engineering behind a device‚ and the mathematics and physics of free-fall is needed. Classic physics originates in Ancient Greece. The theories Thales‚ the first physicist‚ designs gives the discipline of physics
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