"Biology Osmosis In Potato Strips" Essays and Research Papers

  • Biology Osmosis In Potato Strips

    Unit 4 Lab – Effects of Osmosis on Living Tissue Assignment Total: 35 Points Course Weight: 6 Pre-Lab Preparation - Review the following resources to complete this assignment: Textbook: Chapter 5, pg. 83-86 Mastering Biology / Study Area / Chapter 05 – The Working Cell / Student Home Key Concepts Video: Plasmolysis Video: Turgid Elodea Activity: Membrane Structure Activity: Diffusion Activity: Osmosis and Water Balance in Cells Bioflix: Membrane Transport Additional Resources Blast Animation: Diffusion...

    Cell wall, Chemistry, Concentration 1638  Words | 7  Pages

  • Experiment to Shoew the Effect of Different Concentration of Glucose on Potato Strips

    EXPERIMENT TO SHOW THE EFFECT OF DIFFERENT CONCENTRATION OF GLUCOSE ON POTATO STRIPS INTRODUCTION: Molecules of liquid and gas are constantly in motion, they move randomly in all directions and bounce around in all directions and bounce around and into each other. As they move, they tend to spread out moving from areas with many molecules to areas with fewer molecules . This process of spreading out is called Diffusion, for example smell of cooking travelling around the house from the kitchen...

    Cell, Cell membrane, Cell wall 1248  Words | 5  Pages

  • Osmosis in Potato (Incomplete)

    OSMOSIS IN POTATO TISSUES Vanessa Tsao, Lovette To, Wang Yeyun, Zhang Shenjia, Alicia Mak Class 101, Nanyang Girls’ High School, 2 Linden Drive, Singapore 288683 ABSTRACT In this project, the relationship between the concentration of salt solution and the length of the potato strip that was immersed in it was investigated. Five strips of potato of the same length were placed in different Petri dishes that contained water of different salt concentration. They were left for twenty minutes and the length...

    Agar plate, Chemistry, Height 1026  Words | 4  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

  • Biology Coursework: The effects of Osmosis on a potato chip in Sugar Solution

    Biology Coursework: Effect of Sugar Solution on Potato Chips Planning Before planning the experiment, I will research osmosis, so that I can make predictions. This will help me to discover how to make this investigation fair and safe. Planning ahead will help me find out the order in which to carry out the experiment. This should lead me to good results at the end of the experiment. Hypothesis Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane...

    Chemistry, Concentration, Osmosis 807  Words | 4  Pages

  • Ib Biology Potato Lab

    IB Biology Potato Lab Table 1: Trial Number | Concentration of Sucrose Solution (M) ±0.2 ml | Initial Mass of Potato Core Slice(g) ±0.1 | Final Mass of Potato Core Slices (g) ±0.1 | 1 | 0.0 | 7.7 | 9.3 | 2 | | 6.0 | 8.1 | 3 | | 6.2 | 7.4 | 4 | | 10.2 | 13.2 | 5 | | 8.7 | 10.3 | 6 | | 4.9 | 6.0 | 7 | | 9.2 | 10.4 | 1 | 0.2 | 5.8 | 6.0 | 2 | | 11.6 | 12.1 | 3 | | 2.5 | 3.1 | 1 | 0.4 | 14.4 | 13.9 | 2 | | 2.6 | 2.8 | 3 | | 8 | 6.5 | 1 | 0.6 | 7.3 | 5.3 | 2...

    Chemistry, Concentration, Diffusion 1361  Words | 5  Pages

  • Osmosis and Potato Cube

    Diffusion and Osmosis Introduction Tonicity refers to the concentration of solutes in a solution (Lab 6-7). There are three stages of tonicity: Isotonic, hypertonic and hypotonic. Four unknown solutions were given and labeled as followed: Solution A, Solution B, Solution C, and Solution D. Since potato cells were used for this type of experiment, in an Isotonic solution the solute and water concentration are the same as inside the cell in which the isotonic solution contains 0.9% NaCl. In other...

    Cell biology, Chemistry, Concentration 1379  Words | 4  Pages

  • Osmosis and Potato Tuber

    or volume of the plant cells does not change, means there is no net loss or gain of water. Introduction This study shares the results of an effort to understand diffusion and osmosis in general. It focused more into osmosis in plants cell, and how to indirectly measure osmolarity in potato tuber tissue. Osmosis is the diffusion specifically of water across a membrane. Diffusion occurs when certain substance, such as an ion, is more concentrated on one side of membrane. If the membrane allows...

    Cell biology, Cell membrane, Cell wall 1095  Words | 4  Pages

  • biology

    Biology Exam - Paper 6 Revision Notes Enzyme activity lab: 2H2O2 (l) → 2H2O (l) + O2 (g) This reaction can be catalysed by an enzyme (catalase) or by a non-biological catalyst (Manganese IV oxide) 1. Put 3cm2 of hydrogen peroxide in a test tube. 2. Add fresh potato strips and shake gently. 3. Keep your thumb on top of the test tube, or use a stopper, to retain the gas. 4. Do the “glowing splint” test → the splint relights Positive control: repeat the original experiment using manganese...

    Carbon dioxide, Enzyme, Oxygen 1402  Words | 5  Pages

  • Effect of Different Concentrations of Salt on Potato Cell Mass

     Aim To investigate the effects of increasing salinity on potato cell mass. Background Information This experiment is based upon osmosis. Osmosis can be defined as the net movement of water molecules from a region with high concentration to a region with low concentration. This movement must take place across a partially permeable membrane such as a cell wall, which lets smaller molecules such as water through but does not allow bigger molecules to...

    Cell, Cell membrane, Cell wall 1477  Words | 7  Pages

  • Osmosis in Potato Chips

    GCSE Biology: Osmosis in a Potato Aim To investigate the effect of placing a piece of potato in a given strength of sugar solution. Prediction I predict that, as the solution becomes more concentrated the more the cell will shrink, as the water, of higher concentration inside the potato cells, flows down a concentration gradient into the solution, which has a lower concentration of water molecules. If we say that the percentage change when the potato is placed in the 1M solution is x%. I predict...

    Concentration, Measurement, Potato 1095  Words | 4  Pages

  • Bio Potato Core Osmosis

    DCP and CE Potato Core Osmosis #2 ...

    Concentration, Membrane biology, Osmosis 754  Words | 4  Pages

  • Osmosis with Potato Chips

    My Investigation on osmosis Osmosis is a special kind of diffusion. While diffusion can describe the movement of any kind of molecule, osmosis is only about the movement of water molecules. To show this diffusion I will be using potato discs, of the same size and mass, in different concentrations of sugar solution to find out whether the mass of the discs increases or decreases depending on the concentration. I predict that when the sugar solution is 0% the mass will increase as there is...

    Chemistry, Concentration, Mass 656  Words | 3  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

  • Osmosis in Potato Tubers

    Osmosis in Potato Tubers Andrew Dickson Background When a plant cell is bathed in a solution of the same concentration (isotonic) as its intracellular environment, its mass and volume remain the same. This is because water enters and leaves the cells at the same rate. There is no net loss or gain of water by osmosis. Samples of cells can be placed in a range of solutions of different concentration. The cells will gain water by osmosis when placed in solutions which are more dilute (hypotonic)...

    Concentration, Laboratory glassware, Osmosis 1239  Words | 4  Pages

  • Effect of Osmosis on Potato

    Effect of Osmosis on Potato Aim: To investigate the effect osmosis has on potato pieces that are placed in different concentrations of sugar solutions in water. Hypothesis: I believe that the more saturated the solution is the lighter the potato will be, and the potato in the clear water will weigh more after being left in the solution over a 24 hour period. This is because the cell membranes in the potato act as semi permeable membranes (meaning that they only allow certain molecules through)...

    Concentration, Force, Mass 956  Words | 4  Pages

  • The Effect of Salt Concentration on Osmosis in Potato

    The effect of salt concentration on osmosis in potato. Introduction: 1. The purpose of doing this lab is to observe the effects of various solute concentrations on osmosis in a potato. 2. During osmosis, water moves from the side of the membrane where they are most concentrated to the side where they are less concentrated. If the concentration is equal on both sides, there will be no movement. 3. I hypothesize that the mass of the potato will decrease as the salt in the solution...

    Chemistry, Concentration, Diffusion 1173  Words | 4  Pages

  • Effect of Osmosis on Potato Chips

    Effect Of Osmosis On Potato Chips Osmosis is a special kind of diffusion involving the movement of water through a semi permeable membrane, separating solutions of different concentrations. The water passes from a region of high concentration to a region of low concentration until the two concentrations are equal in water. Many cell membranes behave as semi permeable membranes, and osmosis is a vital mechanism in the transport of fluids in living organisms for example in the transport of water...

    Concentration, Mass, Potato 718  Words | 3  Pages

  • Potato Osmosis Report

    Potato osmosis report Operators Introduction The purpose of the liberation Liberation is to understand what is happening with the potatoes when it is in the water. To find out how osmosis takes place and what it's purpose as well as other examples of osmosis. The experiment is to understand what is happening with the potatoes when they are in the water and understand the osmosis process occurs. Osmosis Background facts Osmosis comes from the Greek "[-mo: ´ s] (new latin osmo ´ sis, Greek...

    Bacteria, Cell, Cell membrane 1043  Words | 4  Pages

  • Osmosis and Water

     Osmosis Abstract The basic principles of Osmosis and Diffusion were tested and examined in this lab. We examined the percent increase of mass and molarity of different concentrations of sucrose in the dialysis bag emerged in distilled water and the potato cores emerged in concentrations of sucrose. The data reinforces the principles of Osmosis and Diffusion, and in a biological context, we can simulate how water and particles move in and out of our...

    Concentration, Diffusion, Molecular diffusion 1334  Words | 7  Pages

  • Diffusion and Osmosis of a Potato

    Diffusion and Osmosis of a Potato Introduction Diffusion labels the spread of molecules throughout unsystematic movement from expanses of higher concentration to areas of lesser concentration. The theory of diffusion is entwined to that of mass transfer propelled by a concentration gradient (Wikipedia). For example, when someone in a room passes gas, the odor will eventually spread out among the room until it has reached equilibrium with the air in the room. Instead of substances moving to...

    Chemistry, Concentration, Diffusion 1415  Words | 4  Pages

  • Potato osmosis lab

    because the high amount of salt causes more dehydration. Variables: Independent- Salt Solution Dependent- Mass of Potato Control- Tap Water Materials: •Tap Water (50 ml for each cup) •Salt •Beaker •3 cups •3 pieces of potato •Scale Procedure: Step 1: Gather Materials. Step 2: Weigh each potato separately on the scale and record weight in grams on table. Step 3: Put each potato in a separate cup and add 50 ml of water to each cup, measure with beaker. Step 4: To create the 40% salt solution...

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

  • Determing the Osmolarity of a Potato

    of a Potato Mishal Hasan Abstract Students in Biology find it difficult to understand the concept of tonicity and osmolarity in a real time situation. In this investigation, several concentrations of sucrose were used to determine the osmolarity of a potato. It was found that the concentration of sucrose was close to 3.6 in the potato used showing that it was isotonic. Anything above caused the potato to gain weight showing that it was a hypotonic solution and anything below caused the potato to lose...

    Cell biology, Concentration, Osmosis 1402  Words | 6  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

  • 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 of NaCl 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

    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

    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 and Diffusion

    Introduction Osmosis is the movement of water from a region of higher concentration ( hypertonic ) to a region of lower concentration ( hypotonic solution ) through a cell membrane or other semi-permeable membrane until an equilibrium is reached. It is a special case of diffusion called “ passive transport “ which means no energy is required. Diffusion is the movement of a substance by which the molecules move from a region of higher concentration to a region of lower concentration. Aim ...

    Chemistry, Concentration, Mass 1164  Words | 6  Pages

  • An Investigation Into the Effects of Osmosis Potato Cells

    EFFECTS OF OSMOSIS POTATO CELLS SKILL AREA P: PLANNING Introduction The aim of this investigation is to see the effect of varying concentrations of glucose solution on the amount of osmotic activity between the solution and a potato chip. An investigation into Plasmolysis in onion cells was undertaken prior to this experiment, in order to gain some knowledge of osmosis to enable a hypothesis to be formed. Preliminary Work and Scientific Knowledge Osmosis is defined...

    Cell, Cell wall, Osmosis 1523  Words | 5  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

    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

  • 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

    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/ 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

  • 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 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

  • Biology: lab on termites

    the effect of sugar on the mass of potato Introduction- diffusion is a passive transport where molecules move from areas of higher concentration to areas of low concentrations. Although the molecule's movement is random, equilibrium is being sought out. Osmosis is a type of diffusion only It involves water. In osmosis water diffuses from the area of high concentration to an area of low concentration, to diffuse the more molecule rich side. Because cells have selectively permeable...

    Cell wall, Chemistry, Concentration 1059  Words | 4  Pages

  • Diffusion and Osmosis of Solutes and Water Across a Membrane

    Diffusion and Osmosis of Solutes and Water Across a Membrane Brittany Bacallao Nova Southeastern University Abstract: This experiment gave a visual understanding of osmosis and diffusion. The first experiment proved that solutes would move down a concentration gradient if permeable to the selective membrane. The second experiment proved different solute concentrations affect the movement of water, depending on the solute concentration inside the cell. The purpose of this lab was to look for...

    Chemistry, Concentration, Diffusion 2179  Words | 6  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

  • Effect of Solute Concentration on Osmosis in Potato Cells Report

    INTRODUCTION Osmosis is the movement of water molecules from high concentration to low concentration through semipermeable membranes, caused by the difference in concentrations on the two sides of a membrane (Rbowen, L.). It occurs in both animals and plants cells. In human bodies, the process of osmosis is primarily found in the kidneys, in the glomerulus. In plants, osmosis is carried out everywhere within the cells of the plant (World Book, 1997). This can be shown by an experiment with potato and glucose/salt...

    Carbohydrate, Cell, Cell wall 1701  Words | 5  Pages

  • The Osmosis and Diffusion Report

    Northern Kentucky University BIO 150L: Introduction to Biology I Instructor: Dr. Bethany Bowling Osmosis and Diffusion Report Estimating the Osmolarity of Plant Cells--Potato YAO ZHANG 03/26/2012 Introduction: It is undeniable that all cells have the kinetic energy. It will led the cells move randomly around to others. For this molecular movement, there are two results that might happen. Diffusion is one of them. Diffusion is the movement of molecules that between the...

    Chemistry, Concentration, Osmosis 1313  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

  • Practical 7 Osmosis

     Biology Laboratory Report 4 Practical 7 Osmosis Name: Diana Baktybayeva Tutorial Group: D Lab Partner: Nurlan Mukazhanov Day: Monday afternoon Date: 17.11.14 Title: Osmosis Introduction. Osmosis is a particular type of passive transport involving the movement of water molecules from the region of low solute concentration to the region of high solute concentration through semi permeable membrane, which allows movement of solvent molecules, but not solute...

    Cell, Cell biology, Cell membrane 1190  Words | 5  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 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

  • Factors Affecting the Movement of Water Through Osmosis

    Factors affecting the movement of water through osmosis Introduction In this I will be investigating what effects the movement of water through osmosis. Osmosis is the diffusion of water. It is the process in which fluids pass through a partially-permeable membrane. It is the movement of water from high water concentration to low water concentration. Plant cells react to osmosis by hypertonic, isotonic and hypotonic. Keywords Hypertonic – is when the water outside of the cell is lower than...

    Boiling tube, Cell, Cell wall 1599  Words | 6  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

  • Investigating the Water Potential of Potato Cells

    Investigating the Water Potential Of Potato Cells Aims 1. To test how water potential, in a solution, affects the movement of water in and out of a cell by osmosis Prediction I predict that by increasing the water potential around the outside of the potato cell, (i.e. so that the water potential is greater outside the cell compared to the inside of the cell e.g. 0m sucrose) that the net movement of water into the cell will increase. This is due to the water potential being greater outside the cell...

    Chemistry, Concentration, Diffusion 1635  Words | 4  Pages

  • Observing Osmosis in Potato Cells

    Observing Osmosis in Potato Cells Planning Purpose: To observe the effect of osmosis on plant cells. Hypothesis: The higher the salt content of the water, the lower the mass of the potato. Variables: Independent: the salt percentage of the solution Dependent: the weight of the potato in grams Controlled: the amount of water the length of time between measurements the method of measuring the type of plant cells tested Equipment: (as seen on 2A Human Biology task sheet) ...

    Chemistry, Concentration, Hypothesis 474  Words | 2  Pages

  • osmosis

    test and get the most accurate results. My prediction is half correct. In some cases it is correct because the concentration is higher and the mass of the potato is lower, but in other cases the mass of the potato gets higher, which I did not predict. For example, on the 1st experiment at 2 and 4 concentrations the mass of the potato goes up and the same happens on the 2nd experiment at the 6% concentration. Evaluation ========== We followed the plan correctly, I believe we...

    Chemistry, Concentration, Experiment 532  Words | 7  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 process...

    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 In Potato Cells 1

    4000310515center095000420003263900175001760220OSMOSIS IN POTATO CELLS 450000OSMOSIS IN POTATO CELLS 42672007972425Aruna DhungelbIOLOGY 2A OCTOBER-28-14 00Aruna DhungelbIOLOGY 2A OCTOBER-28-14 Osmosis in Potato Cells Aruna Dhungel Biology 2A October 28 2014 Purpose: To see how much osmosis or diffusion will occurs in potato cell based on the concentration of molarity. Procedure: Obtained 3 cups and label A, B, and C             To cup A added 150ml H2O and 8.775gNaCl (stirred...

    Concentration, Osmosis, Plasmolysis 349  Words | 2  Pages

  • Biology Ch.3

    Answers for HKCEE and HKALE questions are not available due to copyright restrictions.) Ch 3 Movement of substances across cell membrane Exercise Multiple-choice questions (p. 3-25) 1 D2 D3 B4 B5 D6 B7 B8 A9 C10 A11 C Short questions (p. 3-27) 12 HKALE Biology 2006 I Q9 13 a Passive / do not require energy or ATP 1m Movement down a concentration gradient / by diffusion 1m b Active transport 1m It occurs only when oxygen is present because energy / respiration is required. 0.5m There is no uptake...

    Cell, Cell membrane, Cell wall 1359  Words | 2  Pages

  • Osmosis in Potato Tissue

    Biology Aim: My objective is to plan and conduct an experiment from which I should be able to draw a firm conclusion that will either prove or disprove any predictions I make. This essay aims to assess and investigate the effect of various solution concentrations on the activity of osmosis in plant tissue. Background scientific theory: Plants exchange gases (CO2 and O2) in maintaining vital respiratory...

    Cell, Cell membrane, Cell wall 2929  Words | 10  Pages

  • Essay on Apbio Osmosis and Diffusion

    Lab Report on Osmosis and Diffusion Biology 1, Period 3 March 15, 2010 Lab Team: Jason Perez, Kicia Long, Chris McLemore Purpose: The purpose of this lab is to observe the acts of passive transport: diffusion and osmosis in a model membrane system. The experiment will show how molecules in solution move from areas of higher concentration to areas of lower concentration. The model membrane is dialysis tubing. Materials Used 2.5 cm dialysis tubing 15% glucose...

    Dialysis tubing, Diffusion, Enzyme 750  Words | 3  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 Lab

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