Solute Concentration of Potatoes Carmen Chen Blk: 7 December 14, 2013 Purpose: to determine the concentration of solute in potatoes cytoplasm. Materials and Equipment: refer to the lab sheet. Observations: | |Concentration of sucrose|Initial mass |Final mass |Percentage change in | |Test tube # |solution ( |(g) |(g) |mass
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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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Investigating Osmosis in Potatoe Tissue To find out how the concentration of sucrose solution affects the rate of osmosis in a potato and what happens to the length and mass of the potato. What is osmosis? Osmosis is the movement of the water molecules across a partially permeable from a region of high water concentration to a region of low water concentration. Osmosis is a special case of diffusion The biochemical process in living cells always takes place in a solution
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Water can diffuse across the partially permeable membrane of cells depending on the concentration difference between the inside and the outside of the cells. You are going to look at the effect of different concentrations of sugar solutions on potato cells. By measuring the mass of the potato cylinders, you will be able to find out if water has entered or left the potato cells. Aim To find out what happens to the mass of potato cells when they are left in increasingly concentrated solutions.
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Dialysis and Osmosis Beitz 1 Introduction: The cell membrane is not a solid structure. It is made of millions of smaller molecules that create a flexible container. Proteins and phospholipids make up most of the membrane structure. “The proteins are found around the holes and help move molecules in and out of the cell. There are also proteins attached to the inner and outer surfaces of the membrane” (BiologyKids, 15). There are receptor proteins which receive specific molecules, and there are transport
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Assignment Brief Subject | Human Physiology | Unit | CELLS 3-RH33-058 | Tutor Name | David Funge | Assignment Title | Assignment 1 (Nursing groups) | Deadline-as shown on Moodle | I declare that this is my own work. I understand that copying and/or plagiarism will result in rejection of the work with no opportunity for resubmission Student Name _____________________________________________ Student Signature ____________ Date _____________________ I declare that this
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Change in Potato Cells Due to the Effects of Osmosis (AYE YO POTATO! HOW MUCH OSMOLARITY YOU GOT?) Introduction: The purpose of this experiment was to determine the osmolarity of a potato. Osmolarity is defined as the solute concentration expressed as molarity. Lerner and Lerner (2008) define osmosis as the movement of water across a membrane that is selectively permeable. Osmosis is important in plant cells because it plays a role in regulating guard cells, which are cells that are on the surface of a plant’s
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had swelled the cells of the potatoes and the solutions of higher strengths had decreased the size of the cells of the potatoes. We found that this was due to osmosis. The cells of the lower strength solutions were in a hypotonic solution, and the cells in the higher strength were in a hypertonic solution. We used the information we gathered to conclude the osmotic equilibrium of a potato cell is about 2.7 M. INTRODUCTION Our biology class was learning about the basics of osmosis and diffusion
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Temperature has a great effect on osmosis. Based on our data, the bags that contained water at 55 degrees Celsius had a much greater rate of osmosis than the bags at 15 degrees Celsius. When the environment is heated up, reactions occur at a much faster rate. This is because the extra heat provides more energy. Increasing the concentration also increases the rate of osmosis. This is because there is a lesser concentration of water inside the bag in the 40% rather than the 15%. The water will rush
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Osmosis Introduction: Tissues are made up of cells that have the same structure and function. In this experiment osmosis will be measured in a piece of tissue. Water potential can be determined by the changes in dimensions of the tissues when it is placed in solutions of different concentrations. Research Question: What is the effect of sucrose solution on potato cells Hypothesis: Osmosis will increase when the solutions are less concentrated with sucrose Variables: Dependant: Osmosis
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