Experiment 1. For each of the bags‚ identify whether the solution inside was hypertonic‚ hypotonic or isotonic in comparison to the beaker solution it was placed in. Bag #1’s solution was hypotonic compared to the solution of beaker #2. Bag #2’s solution was also hypotonic compared to the solution of beaker #2. Bag #3’s solution was isotonic compared to the solution of beaker #2 and Bag #4’s solution was hypertonic compared to the solution of beaker #1. 2. Which bag increased the most in volume
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concentration (of water molecules) to a region of lower concentration (of water molecules). We define 3 types of solutions based upon osmotic activity. In an isotonic solution‚ the solute concentration is the same on both sides of the membrane so there is no net movement of water. ( See Figure 1) In a hypotonic solution‚ solute concentration is higher inside the cell than outside. So water moves from a high concentration outside the cell to a lower concentration inside the
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Introduction: During this laboratory exercise will identify by the graph given which is isotonic‚ hypotonic‚ or hypertonic. The kidneys are a pair of fist-sized organs located outside the peritoneal cavity on each side of the spine. The kidney is a highly specialized organ that maintains the internal environment of the body by selectively excreting or retaining various substances according to specific body needs. The process of urine formation and adjustment of blood composition involves three
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Batch : Pre-Med May Intake 2013 Group : E Date : 19.06.2013 Lecturer’s Name : Miss Nurul Izziani Objectives : I. To study the effects of hypotonic‚ hypertonic‚ and isotonic solutions on plant and animal cells. Experiment 1 : Introduction : The purpose of doing this experiment is to investigate the effects of hypotonic‚ hypertonic‚ and isotonic solutions on plant cell. Particularly in this experiment we use onion cells. Tissue from an onion is a good first exercise in using the microscope
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permeable membrane. It allows water and oxygen to move freely across the membrane. Osmosis only has an effect when the cell is in a hypotonic or hypertonic solution. A hypotonic solution is when the salt concentration
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water concentration. Imagine that a cell from your body is placed in a solution of water. If the concentration of the water inside the cell is the same as the concentration of water in the solution‚ then we describe the water solution as being “isotonic” or having the same concentration as the water inside the cell. In this case‚ net movement of water will be zero and the cell will not swell or shrink. In other words‚ the same amount of water will move in the cells as will move out. On the other
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water moves down its concentration gradient. A solution surrounding a cell is hypertonic if it contains more solute particles than the inside of the cell‚ and the water will move out of the cell into the surrounding hypertonic solution by osmosis. If the solution is hypotonic (containing fewer solute particles than the inside of the cell)‚ the water will move from the solution into the cell. When the solution is isotonic (the same concentration of solutes as the cell)‚ the cell neither gains nor loses
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bags 2‚ 3‚ and 4 are hypertonic to the water inside the beaker. Adversely‚ the water inside the beaker is hypotonic to the sucrose inside the bag. Another example to this would be swimming in the ocean (salt water) where the ocean’s water is hypertonic (lower water concentration) and the human body is hypotonic (higher water concentration)‚ causing the water inside the human body to move from its high concentration to the ocean’s low concentration. Bag 1 represents an isotonic solution‚ where the
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the solution is hypotonic‚ and water will move from the solution into the cell. If the surrounding solution has a higher concentration of dissolved molecules than the cell‚ the solution is hypertonic. In that case‚ water will move from the cell out into the surrounding solution. An isotonic solution is when the concentration of dissolved molecules is the same inside and outside the cell‚ and there is no net movement of water across the membrane. When cells are placed in a hypertonic solution‚ water
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that the mass of the potato disks will increase after they have been incubated in a hypertonic solution. The mass of the potato disks will decrease after they have been incubated in a hypertonic solution. After the results have been gathered‚ appropriate estimations can then be made as to what the osmotic concentrations of the potato tuber cells are. Osmotic concentrations will either be hypertonic‚ hypotonic or isotonic depending on the results of mass change of the potato tubers. Results: Sucrose
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