Osmosis Rates in Artificial Cells Daniel George Department of Biology Grand Valley State University 1 Campus Drive Allendale‚ MI 49401 georged@mail.gvsu.edu Abstract The lab for this paper was conducted for the topic of osmosis‚ the movement of water from high to low concentration. Five artificial cells were created‚ each being filled with different concentrated solutions of sucrose. These artificial cells were placed in hypertonic‚ hypotonic‚ or isotonic solutions for a period of 90
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sucrose affect osmosis through dialysis tubing? B. VARIABLES 1. The independent variable in this lab is the molarity of sucrose each dialysis bag is filled with. The time (30 minutes)‚ the temperature (23C) and the type of dialysis tubing used are all constants. 2. The dependent variable is the final mass of the dialysis bag. 3. The control in the experiment is distilled water‚ as it does not contain sucrose solution. C. MATERIALS NEEDED 4. Five 30
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2013 Methods and Materials (Bread Mold Lab) Block 1 The materials needed to conduct this experiment are six small squares of bread‚ a container of milk‚ four small Ziploc bags‚ a thermometer‚ a phone to record data and a heat lamp. The container of milk will be used for residue on the inside of two of the plastic bags. The heat lamp will be used to generate heat onto the bread towards the possibility of mold. The thermometer is used to measure the heat that the heat lamp is producing; this is
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end of each piece of dialysis tubing to form 2 bags. Pour 25ml of each of the following solutions into separate bags: a. Distilled water. b. Sucrose(sugar). remove most of the air from each bag by drawing the dialysis bag between two fingers. Tie off the other end of the bag. Leave sufficient space for the expansion of the contents in the bag.(The solution should fill only about one-third to one half of the piece of tubing. Rinse each bag gently with distilled water to remove any solution
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five dialysis bags‚ ten orange clamps to seal our cells‚ and breakers labeled on thought five. To make sure that the dialysis bags stayed durable they were soaked in water for about ten minutes (or they softened). When the bags were ready to be filled with sucrose solution‚ the bags were clamped on one side and then opened on the other side. Each bag was then filled with 10 mL of certain solution. Bag one had just tap water‚ bag two had 20% sucrose‚ bag three consisted of 40% sucrose‚ bag four had 60%
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ASSIGNMENT Module Code Module Name Course Department AEL 2501 Modern Automotive Systems M.Sc in Automotive Engineering Automotive and Aeronautical Engg. Name of the Student Ravishankar Mathad Reg. No BYB0912019 Batch Full-Time 2012. Module Leader Prof. Ashok C.Meti M.S.Ramaiah School of Advanced Studies Postgraduate Engineering and Management Programmes(PEMP) Modern Automotive System #470-P Peenya Industrial Area‚ 4th Phase‚ Peenya‚ Bengaluru-560 058 Tel;
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Examining Diffusion and Osmosis Introduction: Purpose: 1. To simulate and observe the diffusion of solutes and the osmosis of water through a semipermeable membrane through color change and sugar tests. 2. To speculate osmosis occurring in dialysis bags and potato cores by comparing percentage change in masses. Background information: Molecules are always in random‚ constant movement due to their kinetic energy. This causes the molecules of a cell to move around and bump into each other. The
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filed a complaint that the bags it received from Bayfield were short-weight by about 5%‚ they had to determine the cause of the discrepancy. They discovered through checking 50 of the bags that they only had an average net weight of 47.51 pounds. In order to identify the errors that had occurred in the operation‚ and why the weight has become inconsistent‚ Bayfield’s quality managers may consider using Statistical Process Control (SPC). As mentioned‚ past shipments had bags that averaged at 50 pounds
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arresting deforestation of our economic trees‚ reducing the rate of ozone layer depletion‚ reduce burying of waste which causes underground water pollution and reducing the over-stress of waste in the environment by investing in a nylon and plastic bag recycling plant. ------------------------------------------------- NYLONS – CURRENT STATUS Society is developing quickly‚ and the need of human is climbing dramatically. Products are made more‚ the use of nylon is more popular. This makes many
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cup milk - 1-quart plastic bag - 1/2 cup heavy cream - 1-gallon plastic bag - 1/4 cup sugar - thermometer - 1 teaspoon vanilla - measuring cup & spoon - 3/4 cup NaCl - 2 cup ice 2. Add the sugar‚ milk‚ heavy cream and vanilla to the quart size bag. Seal the bag. 3. Put 2 cups of ice into the gallon plastic bag. 4. Use a thermometer to measure and record
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