"Osmosis Lab Repoort" Essays and Research Papers

  • Osmosis Lab Repoort

    Breanna Gomez Miss. Pagano Honors Biology April 6, 2013 The Effect of Sugar and Salt on Osmosis and Diffusion Introduction: Osmosis is the diffusion of water through a selectively permeable membrane. A selectively membrane means that the cell membrane can only control over certain things that come in and out through the membrane. A membrane is just the structure surrounding the cell. Throughout osmosis, the cell could either get larger, or smaller. If the cell gets larger it means that it was...

    Cell, Dialysis tubing, Diffusion 1322  Words | 4  Pages

  • osmosis lab

    Osmosis and Diffusion Lab Introduction: Osmosis occurs when different concentrations of water are separated by a selectively permeable membrane. Osmosis is the movement of water across selectively permeable membranes. Purpose: In this experiment that we performed we will learn about osmosis using dialysis membrane, a selectively permeable cellulose sheet that permits the passage of water but obstructs passage of larger molecules. Hypothesis: My prediction is that increasing sucrose...

    Dialysis, Dialysis tubing, Diffusion 570  Words | 3  Pages

  • Osmosis Lab

    The Effect of Osmosis on a Potato Cell October 12th 2012 Osmosis Lab Purpose: The purpose of this lab is to investigate the effects of osmosis on a potato cell as it is immersed for a period of time in solutions of different water concentrations. Hypothesis: If the potato is immersed into the distilled water, then it will be the heaviest out of the three. This is because water is at the lower is moving toward the area of higher concentration, which in this case is the potato. This...

    Cell wall, Concentration, Mass 1566  Words | 6  Pages

  • Osmosis Lab

    Osmosis of Sucrose Solutions of Different Molarities Through Dialysis Tubing (a Semi-Permeable Membrane) I. DESIGN A. PROBLEM/RESEARCH QUESTION 1. How does increasing molarity of 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...

    Concentration, Dialysis, Dialysis tubing 1797  Words | 6  Pages

  • Osmosis Lab

    Explain why, USING THE TERMS OF OSMOSIS from this activity. While grilling a steak it is better to put salt on it before you grill it so while it is grilling osmosis will occur and it will retain the salt. So instead of it just sitting on top of the steak it will be on the inside. Giving it more flavor of the salt while eating it. 6) Why does salad become soggy and wilted when the dressing has been on it for a while? Explain why, in terms of osmosis. The reason why salad...

    Cell, Cell biology, Cell membrane 669  Words | 4  Pages

  • Osmosis Lab

    Osmosis Lab March 22, 2013 Amanda L***** Introduction Transport into and out of your cells is important because without cellular transport, the cell could not move material into or out of the cell. This would lead to its inability to survive because cells must take in oxygen and food, and expel waste material that could inhibit the cell from performing in the body. A type of cell transport in particular is passive transport. Passive transport is a kind of transport by which ions or molecules move...

    Cell, Cell biology, Cell membrane 1292  Words | 5  Pages

  • Osmosis Lab

    The Osmosis Lab SHS Lacrosse Monster #2 Dates performed: 10/10/11 and 10/11/11 Introduction: The purpose of the laboratory investigation was to observe the diffusion of water across a semi-permeable membrane. In this lab, dialysis tubing was used to represent the semi-permeable cell membrane. Three dialysis tubes were prepared with 5% sucrose solution and were soaked in solutions of different concentrations. The diffusion of water across a semi-permeable membrane is called osmosis. When...

    Concentration, Dialysis tubing, Diffusion 941  Words | 7  Pages

  • Osmosis lab

    diffusion called osmosis, “which involves in selective transport of water molecules across a selectively permeable membrane” (Lab Manual 2nd edition). It was hypothesized that osmosis will occur when there is an uneven distribution of solute in a solvent. The more abundant the solute is in solvent, the higher the rate of osmosis through the diffusion gradient forming a hypertonic or hypotonic solution. Solvent with equal or no solute forms an isotonic solution. Throughout this lab, data was collected...

    Cell wall, Chemistry, Concentration 717  Words | 4  Pages

  • Osmosis Lab

    Osmosis Design Lab November 19, 2011 Biology Defining the Problem and Selecting the Variables Research Question: What will happen to mass of the cell when it is placed in different solutions while trying to reach equilibrium? Background Information Osmosis is the procedure where water or different types of liquids move through a semipermeable membrane. This type of passage is considered as simple diffusion where no energy is required. This means that the liquid will have...

    Chemistry, Concentration, Liquid 1553  Words | 5  Pages

  • Osmosis Lab

    xxx1 xxxxxx Ms. xxxx Biology 20 November 2013 Osmosis Lab Problem: What’s the order of the concentration for each solution and how does it affect the movement of water? Hypothesis: Experimenter thinks the order of the solutions according to their concentration is D,A,E,C,B, from smallest. And the water will pass through semipermeable tubing bag from low to high concentration to thin the concentration inside the bag. Osmosis is a diffusion of water particles and is one of the passive transport...

    Chemistry, Concentration, Saturation 911  Words | 5  Pages

  • Osmosis lab

     The Measurement of the Rate of Osmosis by using “Deshelled” Chicken Eggs (Effect of Solute Concentration upon Rate/Degree of Osmosis in Chicken Eggs) Introduction Every cell needs a mechanism that it uses in the maintenance of a constant internal environment. This is important in the control of the ever changing external environment to the cell. The transfer of materials to and from the cell thus needs a very stable mechanism to achieve this status. Cells are therefore bound a membrane that acts...

    Cell biology, Cell membrane, Chemistry 1653  Words | 5  Pages

  • Osmosis Lab

    rate of osmosis across a potato’s cell membrane submerged for 94 hours in the solutation. Background Information: Osmosis is the movement of solvent molecules across a partially permeable membrane. They move from a region of low concentration (hypotonic) to a region of high concentration (hypertonic). The rate of osmosis across a eukaryotic cell membrane can be affected by different factors; including temperature, concentration gradient, water potential and the surface area for osmosis to occur...

    Concentration, Diffusion, Osmosis 1455  Words | 5  Pages

  • Osmosis Lab

    Aim: Investigate the effect of sucrose concentration on osmosis in Solanum tuberosum by recording the change in mass. • Independent Variable: concentration of sucrose (0.0 M, 0.2 M, 0.4 M, 0.6 M, 0.8 M, 1.0 M) (± 0.05) • Dependent Variable: final mass of the cylinders of Solanum tuberosum (± 0.05) • Controlled Variable: temperature, initial length of potato cylinders, volume of the solutions, etc. Apparatus/Materials: • Solanum tuberosum (potatoes) • Sucrose solution (0.0 M, 0.2 M, 0.4 M...

    Cell wall, Concentration, Isotonic 730  Words | 4  Pages

  • Osmosis and Diffusion Lab

    Osmosis and Diffusion Title: Diffusion and Osmosis AP Lab 1 Purpose: The purpose of this activity is to determine the effects of a selectively permeable membrane on diffusion and osmosis between two solutions separated by a membrane. Hypothesis: Procedures: In lab manual Material: In lab manual Background Information: Data: Table 1 Diffusion of glucose and iodine. | Color | Glucose | Time | Dialysis Bag | Beaker | Dialysis Bag | Beaker | Start | | | | | 30 minutes...

    Cell biology, Dialysis tubing, Diffusion 600  Words | 3  Pages

  • Osmosis Lab Report

    Osmosis Lab Research Question: In this lab, our goal was to look at the effects of different sucrose concentrations on osmosis in potatoes. Our research question was “How do the sugar levels affect the rate of osmosis in potatoes?”. Background Information: Solutions consist of solutes dissolved in a solvent. In all living organisms there are many different types of solutes including salts and sugars. The major solvent is water. There are different concentrations of solutes in various regions...

    Chemistry, Concentration, Diffusion 966  Words | 4  Pages

  • Osmosis Lab Report

    Formal Scientific Lab Report Osmosis Katy Hunter 10-26-2012 Abstract: The objectives of this lab was to be able to create models of cells with the dialysis tubing to show us how the plasma membrane is selectively permeable, to study the effects of osmosis on a model cell, and to foresee the effect of solute concentration on osmosis. In order to achieve these objectives, we had to fill the dialysis tubing with either water, or different amounts of sucrose. We then tied off the tubes and put...

    Chemistry, Concentration, Diffusion 1127  Words | 4  Pages

  • Biology Osmosis Lab Report

    Osmosis Lab Report by Evan Gerber Claire Cambron First Lab Report Wednesday 10:30am February 20, 2013 Theresa Gburek Abstract The major objective of the experiment was to test the effect of the concentration gradient on the diffusion rate. It was hypothesized that the greater the stronger the concentration gradient, the faster the rate of diffusion would be. To test this, dialysis tubes were submerged in different concentration fructose solutions. We weighed the tubes at specific...

    Chemistry, Concentration, Diffusion 1887  Words | 6  Pages

  • Osmosis Lab Report

    zmosis The IB Lab Report Measuring osmosis 1. Introduction My experiment is about osmosis on a potato and if or the quantity of salt affects osmosis. I would do the experiment with 5 potatoes cut into squares all the potatoes weight the same so the weight can`t be a variable the I put the potatoes on 5 different plastic cups with different amounts of salt and then I weight them again to see if the quantity of salt affected the osmosis of potatoes 1a. Research question ¿Does the quantity...

    Affect, Drinkware, Graph theory 696  Words | 4  Pages

  • Osmosis Lab Write Up

    What I already knew: Dehydrated apples have less Surface Area/Volume ratio Regular apples have water in them from their juice, meaning that in order for the rate of osmosis to balance out, there wouldn’t be as much osmosis occurring as in dehydrated apples because they have little to no water/juices. Why I choose to use apples and dehydrated apples for the experiment: When we were given the experiment, I had eaten an apple only a few minutes ago. So when we were asked to pick a fruit or vegetable...

    Apple, Apple crisp, Fruit 639  Words | 4  Pages

  • Biology Lab on Osmosis

    Michelle Kim 2012.1.20 Biology Iso-osmolar Concentration of Carrot Cells Lab INTRODUCTION For a more thorough understanding of this lab introduction, the concepts of, iso osmolar, membrane, equilibrium, and concentration gradient evaluated. Iso osmolar can be known as the point in which the substance of experimentation faces no change despite the amount of solute inside the solvent( because the solvent and solute concentration is equal. This is where the line on a graph would cross on the...

    Cell, Cell wall, Chemistry 1893  Words | 5  Pages

  • Osmosis Lab Report

    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...

    Cell biology, Concentration, Diffusion 1606  Words | 5  Pages

  • Diffusion, Dialysis & Osmosis Lab

    Introduction In Diffusion, Dialysis & Osmosis lab, we discovered that we were going to observe and understand the conditions under which diffusion, dialysis, and osmosis occur. Then we constructed models of diffusion, dialysis, and osmosis. We predicted that the direction of change would be from the membrane to the beaker. We understood how these processes affected the selectivity of the cell membrane. The second part of the lab was dealing with dialysis. In this part we studied starch and sodium...

    Chlorine, Glucose, Iodine 722  Words | 4  Pages

  • Osmosis Lab Rapport

    Osmosis Lab Rapport How does the concentration of sugar solution affect osmosis in potato cells? Background information Osmosis is a special case diffusion; it is the diffusion of water molecules with a membrane permeable to water. Diffusion is movement of cells from a high concentration, to a low concentration. There are many aspects that can influence the rate of osmosis, like mass of particle and temperature. Variables Independent Variable: The independent variable is the concentration of...

    Chemistry, Concentration, Distilled water 473  Words | 2  Pages

  • Diffusion and Osmosis Lab

     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...

    Cell, Cell membrane, Cell wall 1363  Words | 5  Pages

  • Osmosis and the Egg Lab Report

    Osmosis and the Egg Lab Report  By: N. Mullins  Date: January 20, 2011    Introduction  This lab was designed to explain the different things osmosis does. Osmosis is the  diffusion of water across a semi permeable membrane. Over three days we tested the egg  in three different solutions to observe the changes. On Day 1, the main question we  answered was what happened to the egg when it was placed in vinegar? Before doing this  I came to my hypothesis was that the vinegar would eat away at the shell and eventually ...

    Acid, Bacteria, Egg 1334  Words | 3  Pages

  • Diffusion and Osmosis Lab

    Diffusion and osmosis are processes that are a constant in our lives, even though many don’t realize it. Medicaments such as Fervex can be drunk only after diffusion has taken place and the powder granules have diffused into the hot cup of water. On the other hand, every day we become unintentional witnesses of osmosis when the roots of the plants try to suck up the water from the soil (1). The purpose of this lab is to show clearly in an understandable way how diffusion and osmosis happen and to...

    Absolute zero, Boiling point, Celsius 1512  Words | 5  Pages

  • Diffusion Osmosis Lab Report

    Diffusion and Osmosis Shown In Solutions Section 1: Abstract This lab, title Diffusion and Osmosis, was centered around the diffusion across a cellular membrane and how exactly materials move and diffuse in concentrations. Both diffusion and osmosis are forms of movement that are part of passive transport dealing with cell membranes. Diffusion is where the solutes move from an area of high concentration to a low concentration. Water goes through the cell membranes by diffusion. Osmosis is specifically...

    Cell, Cell membrane, Cell wall 1308  Words | 3  Pages

  • Diffusion and Osmosis Lab

    Diffusion and Osmosis Experiment Methods/Materials: 7.1 Experiment: Rate of Diffusion of Solutes In the initial set up of this experiment I had 2 sets of 3 screw-cap test tubes that had each been half-filled with 5% gelatin and 1-mL of the correct dye (either potassium dichromate, aniline blue, or Janus green) in each of the test tubes. I labeled the 3 test tubes of set 1 with which die they contained and marked them “5 ˚C”. Then with the other set I did the same exact thing, except I labeled...

    Blood, Cell, Cell wall 2132  Words | 6  Pages

  • Lab 4 Diffusion and Osmosis

    1. Diffusion and Osmosis, June 4, 2013 2. Purpose: The purpose of this lab is to help give visual understanding of diffusion which is a solution of high concentration spontaneously (no energy required) moving to an area of low concentration. Also taking a look at osmosis, which is the movement of chemicals across the cell membrane. Osmosis requires some type of energy to be put in for this to happen. After these experiments we should have a better idea and visualization of how chemicals transfer...

    Carbohydrate, Cell, Chemistry 657  Words | 5  Pages

  • Osmosis Lab Report

    NAME: Donna Ha TITLE: Measuring the Rate of Osmosis Using “De-shelled” Chicken Eggs INTRODUCTION: In order to fully understand the concept of this experiment, one must first be introduced to diffusion. Diffusion is a spontaneous process by which molecule particles move from one area that is highly concentrated to another area in which its concentration is lower. Cells contain fluids and are surrounded by fluids; in order for a cell to function it is required to be in a balanced state. The...

    Concentration, Egg, Egg yolk 2530  Words | 7  Pages

  • AP Bio Osmosis and Diffusion lab

    Diffusion and Osmosis Lab Introduction: 1) The relationship between the rate of diffusion, volume and surface area is that the surface area of a subject somewhat correlates with the volume of the object. When the surface area and volume are set up as a ratio, this gives a good idea as to how fast the rate of diffusion will be. The higher surface area to volume ratio, the faster the rate of diffusion. This is because then there is more surfaces to diffuse through and there materials to diffuse...

    Cell, Cell biology, Cell wall 2614  Words | 7  Pages

  • Lab Report on Osmosis

    Potato Osmosis and Diffusion Lab Report Emily Cocq Research Question: Will there be a difference in the experimented potato cores after being subjected to high concentrations of sugar? Introduction: Water can move through protein channels in cell membrane/cell walls. The water will move due to the water potential of the cells. If there is a greater concentration of solutes (chemicals) inside the cell than outside the cell and the chemicals can not move, then water will respond by moving...

    Carbohydrate, Concentration, Distillation 1195  Words | 4  Pages

  • Lab 5: Osmosis

    Lab 5: Osmosis Purpose: The purpose of this lab is to familiarize you with osmosis and, specifically, what happens to cells when they are exposed to solutions of differing tonicities. Hypothesis: If we add higher concentrations of sugar to the dialysis tubing, then the net movement of coffee into the dialysis tubing will increase. Materials scale or balance 24" dialysis tubing 4 transfer pipets sugar scissors rubber bands four coffee cups - they need to be roughly the same size ...

    Dialysis, Dialysis tubing, Mass 1044  Words | 4  Pages

  • Gummy Bear Osmosis Lab Report

    Tiffany Parker Mr. Taylor Biology 6th period 2/12/15 Gummy Bear Osmosis Lab Report Purpose: The purpose of this lab is to measure the amount of Osmosis in different types of solutions and to see how a cell would react in different types of solutions. Hypothesis: My hypothesis for this experiment is that the Gummy bear will absorb more of the plain tap and sugar water and the salt water will shrink the gummy Procedure: Materials- 3 clear cups, one spoon, 3 gummy bears, timer, tap water, salt, sugar...

    Chemistry, Confectionery, Flavor 555  Words | 3  Pages

  • Lab Report Osmosis

    The effect of osmosis on artificial cells with different concentrations of sucrose Alex McRae Biology 120-902 Grand Valley State University 1 Campus Drive Allendale, MI 49401 mcraeal@mail.gvsu.edu Abstract In this study, we tested the validity of osmosis in artificial animal cells. Osmosis is the diffusion of free water across a membrane. The purpose of the study was to calculate the rate of osmosis in artificial cells containing different...

    Cell biology, Concentration, Diffusion 1689  Words | 5  Pages

  • A.P. Biology Lab: 1. Osmosis

    Natalia Wierzchon A.P. Biology Lab: 1. Osmosis 09/10/2010 I. Introduction a. Purpose: The purpose of this lab was to observe the diffusion process of water, osmosis, as well as create an understanding of water potential, the basis of osmosis. The experiment proved how water molecules in a solution are able to move from an area of low solute concentration, high water concentration, to an area of high solute concentration, low water concentration, diffusing “down” the water gradient....

    Chemistry, Concentration, Diffusion 1627  Words | 5  Pages

  • biology lab report of osmosis

    experiment to investigate the osmosis in plant cells. AIM: To determine how the osmosis in potato cells measured by change in length of potato cylinders varies with change in concentration of sucrose. MATERIALS REQUIRED: Potatoes Cork borer Sucrose Distilled water Digital balance Filter paper Knife Glass rod 10cm/100mm ruler 100ml beakers – 15 VARIABLES: INDEPENDENT VARIABLE: The concentration of sucrose solution taken in g dm-3.DEPENDENT VARIABLE: Osmosis of plant cells measured by...

    Chemistry, Concentration, Measurement 1377  Words | 4  Pages

  • Osmosis

    Lab 1 7.2 Osmosis Introduction Osmosis is the diffusion of water across a selectively permeable membrane in response to a differing overall solute concentration (Starr, Evers, and Starr 85). Most polar molecules such as sugars and proteins cannot freely pass through a lipid membrane; although water molecules are polar they are small enough to pass though the membrane freely. This special case of diffusion that involves the movement of water molecules across a membrane is called Osmosis. This...

    Cell, Cell membrane, Cell wall 1254  Words | 4  Pages

  • Osmosis

    allows certain molecules or ions to get in or to get out of the cell. There are three types of movement of particals across the cell: diffusion(and also facilitated diffusion), osmosis and active transport. Diffusion and osmosis are passive movements and they don't require any energy. Active transport requires ATP energy. OSMOSIS is the passive movement of water molecules across a partially permeable (semipermeable) membrane, from a region of lower solute concentration to a region of higher solute concentration...

    Cell, Cell membrane, Cell wall 1297  Words | 7  Pages

  • Osmosis Lab Report

    Introduction The reason of this experiment was to identify the properties and effects of osmosis. Osmosis can be defined as the diffusion of water through a selectively permeable membrane. (Miller/Levine) Osmosis occurs when there is an area of higher and lower concentration. Osmosis is a type of diffusion. Diffusion is when molecules move from an area of higher concentration to an area of higher concentration. The three types of concentrations are hypotonic, hypertonic, and isotonic. When in comparison...

    Chemistry, Concentration, Diffusion 839  Words | 3  Pages

  • Osmosis lab report

    Aiko Okada How the potato slices are affected in different levels of concentrated water Introduction: In class, we are learning about the process of osmosis, and how osmosis works with the potato slices. As we learned that the potato slices with salt is bendable, we did an experiment with a different concentration of water. Aim- Aim is to observe how the potato slices changes in several levels of concentrated solutions, from distilled water to 5% salty water. Therefore, the aim is to figure out...

    Chemistry, Concentration, Distilled water 732  Words | 3  Pages

  • Diffusion and Osmosis Lab Report

    Diffusion and Osmosis NGSSS: SC.912.L.14.2 Relate structure to function for the components of plant and animal cells. Explain the role of cell membranes as a highly selective barrier (passive and active transport). SC.912.L.14.3 Compare and contrast the general structures of plant and animal cells. Compare and contrast the general structures of prokaryotic and eukaryotic cells. AA Background: (Source: www.explorelearning.com) Diffusion is the process in which there is a net movement of...

    Cell, Cell membrane, Cell wall 1152  Words | 5  Pages

  • osmosis and celery lab experiment

    DIFFUSION AND OSMOSIS Chapter 3 of your textbook explains diffusion and osmosis. Diffusion is simply the net movement of atoms or molecules from a region of higher concentration to a region of lower concentration. The force behind the movement is heat or kinetic energy (also called Brownian motion). Diffusion occurs when you spill water on the carpet floor and it spreads out, or when you open a bottle of perfume and it leaves the bottle and spreads throughout the air in the room. Osmosis is a similar...

    Cell biology, Cell wall, Diffusion 1013  Words | 4  Pages

  • Osmosis/ Potato Lab Ap Bio

    Osmosis Lab Introduction: In order for cells to interact with their environment, molecules must be able to move through the cell membrane. Movement within the cell occurs by diffusion. Molecules move through the cell membrane by osmosis. Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration. This happens because of random molecular motion. Molecules move around randomly until there is an even mixture throughout cell and mixture. The overall...

    Cell biology, Cell membrane, Cell wall 1114  Words | 4  Pages

  • Potato osmosis lab

    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 humans....

    Dehydration, English-language films, Kilogram 292  Words | 3  Pages

  • Lab 1 - Egg Osmosis and Diffusion

    Diffusion and Osmosis Experiment with a Shell-Less Egg After Three days of Testing Methods with Water and Corn Syrup Lisa July 1, 2013 Purpose To use the properties of diffusion and osmosis to see the effects of either corn syrup or water on a shell-less raw egg over a three day period. While looking to see the effects of these liquids on the raw egg, one can also apply the properties of hypotonic, hypertonic, and isotonic solutions. Introduction Cells have an outer covering called the cell...

    24-hour clock, Acetic acid, Chicken 1575  Words | 5  Pages

  • Lab Report on Osmosis

    - | - | 100 | + | + | - | - | 200 | + | + | - | + | Activity 2 (Table 2): Facilitated Diffusion Rates (glucose transport rate, mM/ min) Facilitated Diffusion (Glucose Transport rate, mM/min) Discussion and Conclusions In the first lab experiment (refer to Table 1), Simulating Dialysis (Simple Diffusion), the computerized simulation demonstrated the passage of water and solutes through semi permeable membranes in cells down its concentration gradient. The four membranes used in the...

    Chemistry, Diffusion, Glucose 1287  Words | 5  Pages

  • Osmosis

    Investigation: A factor that affects the movement of water in and out of cells. Osmosis: movement of water from a region of high water potential to a region of low water potential through a partially permeable membrane. High water potential = lots of free water molecules, low solute concentration Low water potential = very few free water molecules, high solute concentration Factors That Affect the Movement of Water in and out of Cells * Solute concentration * If one solution...

    Chemistry, Concentration, Osmosis 460  Words | 3  Pages

  • Osmosis

    http://thegrabup.com/?p=811 Significance Of Osmosis (700-1200) Osmosis is a process of movement of solvent through a semi permeable membrane from an area of high water concentration to an area of low water concentration to equalize the concentration of solute to both side of the membrane. . Water is sometimes called "the perfect solvent," and living tissue (for example, a human being's cell walls) is the best example of a semipermeable membrane. Osmosis process as demonstrated below shows that when...

    Bacteria, Canning, Diffusion 1102  Words | 3  Pages

  • Osmosis

    OSMOSIS IN POTATO Osmosis describes a physical process in which any solvent moves, without input of energy. The word 'osmosis' is particular to the diffusion of water molecules into the cell. These are the ways to see the effects of osmosis on a plant by comparing potatoes placed in different types of water. These are the materials needed to view osmosis in action: Potato (sliced into 3) 3 Glasses Water Salt Methods: 1. Fill Glass A with pure water while Glass B, mix salt and...

    Buoyancy, Cell wall, Chemistry 736  Words | 3  Pages

  • Osmosis Lab

    supposed to hold up the structure of the cell keeping all organisms in alignment. Osmosis is the movement of solvent molecules through a partially permeable membrane into a region of higher solute concentration, in order to equalize the solute concentrations on the two sides. We didn't know anything about osmosis except that it was a word in the dictionary that we never picked up. Osmosis and diffusion are similar because osmosis is the result of diffusion across a semi-permeable membrane. If two solutions...

    Cell membrane, Collard greens, Concentration 3553  Words | 9  Pages

  • osmosis

    Bio lab dcp Rough data collection Concretion of sucrose(mol) (±0.1) Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 No. of cells No. of cells plasmolysis No of cells No of cells plasmolysis No of cells No of cells plasmolysis No of cells No of cells plasmolysis No of cells No of cells plasmolysis 0.3 43 7 39 5 40 9 38 6 34 4 0.4 40 6 40 8 40 6 38 7 40 8 0.5 42 16 44 17 42 13 43 18 42 17 0.6 42 22 42 19 43 20 44 19 45 22 0.7 47 23 43 ...

    Cell, Cell biology, Cell membrane 491  Words | 5  Pages

  • Osmosis

    purpose of this experiment was to test different solute concentrations on the rate of osmosis. Artificial cells were filled with different solute concentrations and placed in water and weighed at equal time intervals to show how the water moves across cell membranes and down its concentration gradient into the lower concentrated area. The weights of the cells were recorded each interval, and then the rate of osmosis was found by calculating the corrected cumulative change in weight. The prediction...

    Cell wall, Chemistry, Concentration 1202  Words | 4  Pages

  • Osmosis

    An investigation how sugar solutions of different concentrations affect osmosis. Research Osmosis is the diffusion of water across a partially permeable membrane from a dilute solution to one of a higher concentration. If a solution has a low concentration then the amount of (in the case of my investigation) sugar, the solute, will be low and the solution will be weak. If there is high amount of sugar then the solution will be concentrated (have a high concentration). When two solutions...

    Chemistry, Concentration, Mass 1806  Words | 6  Pages

  • Osmosis

    Osmosis: How fast can you move? The Rate at which Osmosis Occurs when Exposed to Various Toxicities Within the human body many things are occurring at all times. Without these small, seemingly insignificant processes all human life would cease to exist. One of the aforementioned activities is Osmosis, or the movement of water across a selectively permeable membrane eventually establishing equilibrium on both sides of the concentration gradient (Freeman 90). During this specific experiment involving...

    Cell, Cell biology, Cell wall 958  Words | 3  Pages

  • Osmosis lab/ concentrations of solutions effect on potatoes mass.

    "Do different concentrations of solutions determine the mass of a potato?" Introduction: The way to get the full results of this lab was through the process of osmosis. Osmosis is the movement of water across a membrane into a more concentrated solution to reach an equilibrium. When regarding cells osmosis has three different terms that are used to describe their concentration. The first of these words is isotonic. Cells in an isotonic solution show that the water has no net movement and the amount...

    Cell, Cell biology, Cell wall 1415  Words | 5  Pages

  • Osmosis

    Osmosis Aim: To determine the concentration of cell sap in a potato cell. Osmosis is the movement of water through a semi-permeable membrane. It starts from a weak solution and becomes a more stronger solution until the concentrations on both sides are equal. To investigate the range of solutions needed to find the point at which the surrounding solution is the same as the cell sap in the vacuole. ...

    Chemistry, Concentration, Liquid 560  Words | 3  Pages

  • Osmosis Lab

    Diffusion and Osmosis lab Results: Figure 1a-rate of weight change in 15 min intervals of each concentration. The first tube showed very little weight change. However all other tubes show a greater change the concentration could be the factor that determines the permeability of the sucrose. The sucrose molecules are too large to pass through. Figure 1b- sucrose concentration determines the weight change. In this case based on our results as concentration increases the percent weight change...

    Cell, Dialysis tubing, Diffusion 529  Words | 2  Pages

  • Biology Lab Report Ib Hl Osmosis

    Biology Lab Report 2 Investigating the phenomenon of Osmosis in plant tissues: Potato in different concentrations of NaCl Tutor: Maria Tsaousidou By Marina Gkritzioudi Tutor: Maria Tsaousidou By Marina Gkritzioudi Investigating the phenomenon of Osmosis in plant tissues: Potato in different concentrations of NaCl Introduction: Osmosis is the movement of...

    Aqueous solution, Chemistry, Concentration 1917  Words | 6  Pages

  • Osmosis Potato Lab Report Biology 4u

    Introduction The movement of water molecules across a semi-permeable membrane is the process of osmosis. If there is a solute and a solvent, each containing different concentration levels, then the water would move along its concentration gradient until each side of the membrane are equal. The water moves because the membrane is impermeable to the solute and the solute concentrations may differ on either side of the membrane. Water molecules may move in and out of the cell, but there is no net diffusion...

    Chemistry, Concentration, Molecular diffusion 2124  Words | 7  Pages

tracking img