"The Effect Of Salt Concentration On Osmosis In Potato Cells" Essays and Research Papers

  • The Effect Of Salt Concentration On Osmosis In Potato Cells

    Title: 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 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

  • 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

  • Osmosis: Concentration and Potato Tissue

    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

  • Osmosis and Salt Concentration

    Osmosis in Plant Cells Sara Braqi March 25, 2012 Biology I Research Question Which saltwater concentration will have the most damaging effects on potato cells? Introduction Osmosis is the diffusion of water across a selectively permeable membrane. Generally, water moves from a lower solute concentration into a higher solute concentration. This movement of water occurs due to the need for the concentrations in the cell and in the solution to be at equilibrium. A solution with a low solute...

    Cell wall, Chemistry, Concentration 2086  Words | 7  Pages

  • The Effect of Different Salt Concentrations on Osmosis

    The effect of salt concentrations on the mass of the pear cubes ‘Pyrus’ after being soaked in water Aim: The effect of salt concentrations on the mass of the pear ‘Pyrus’ pieces shaped as cubes of 1cm. Background: Osmosis is the net movement of water molecules through a semi-permeable membrane from an area of higher water potential to an area of lower water potential. Water makes up to 70-90% of living cells and cell membranes are partially permeable membranes. Dissolved substances attract...

    Chemistry, Concentration, Diffusion 1194  Words | 4  Pages

  • An Investigation Into the Effects of Osmosis Potato Cells

    AN INVESTIGATION INTO THE 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 ...

    Cell, Cell wall, Osmosis 1523  Words | 5  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

  • The Effect of Salt Concentration on Osmosis

    Title: The effect of temperature on beet cell membranes. Introduction: 1. Eukaryotic cells are much more intricate than prokaryotic cells. The first thing observed is the assortment of structures in the cytoplasm. The fluid filled region between the nucleus and the plasma membrane. These structures along with the nucleus are the organelles, each having a specific function in the cell. The organelles are by membranes divided in proficient sections .The plant cell is made up of a rigid thick wall...

    Bacteria, Cell, Cell membrane 793  Words | 3  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

  • 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

  • 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/ 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: Concentration and Water

    Osmosis Lab: Potatoes and Elodea Background Information: Cells have a need to regulate their internal environment. They need to be able to this because cells often find themselves in environments where the concentration of dissolved solids outside the cell is different from the number of dissolved solids inside the cell. Since the solids can not move across the membrane, the cell responds by moving water either into or out of the cell in an attempt to balance the number dissolved particles...

    Bacteria, Cell biology, Cell wall 1342  Words | 5  Pages

  • Investigating the Concentration of the Solutions Inside the Vacuole of a Potato Cell.

    Osmosis Investigation We are trying to find out what the concentration of the solutions is inside the vacuole of a potato cell. We will investigate how the mass of the potato chips change in different sucrose solution concentrations. We will use osmosis to do this. I will be measuring and controlling many different variables, these include; - The dependent Variable – Weight of potato chip Independent Variable – Concentration of sucrose Control Variables consist of; - 1. Temperature ...

    Area, Concentration, Mass 1492  Words | 6  Pages

  • Osmosis Potato Lab Report Biology 4u

    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 of water. Water will move in...

    Chemistry, Concentration, Molecular diffusion 2124  Words | 7  Pages

  • To investigate the effect to the potato cells in the different solute concentration water

    Aim: To investigate the effect to the potato cells in the different solute concentration water Introduction; Water can move through the different cells due to the difference of water potentials in the cells. If there is a higher solute concentration in the cell than outside the cell, the water will move into the cell. However, if the concentration of inside the cell is lower than the outside, water will not move into the cell. This process is called osmosis. Research question; This investigation...

    Chemistry, Concentration, Julius Richard Petri 1068  Words | 6  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 Our...

    Chemistry, Concentration, Mass 1164  Words | 6  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

  • The Effects of Concentration on Osmosis

    Introduction: This experiment was used to examine the hypothesis that: Osmosis is dependent on the concentrations of the substances involved. Diffusion is the passage of solute molecules from an area of high concentration to an area of low concentration (Campbell & Reece, 2005). An example is ammonia diffusing throughout a room. A solute is one of two components in a chemical solution. The solute is the substance dissolved in the solution. The solvent, the other component, is any liquid...

    Chemistry, Concentration, Diffusion 1446  Words | 6  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 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

  • 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 Experiment

    Topic: Osmosis Materials: Potato cylinders, 20 percent sodium chloride solution, three test-tubes, test-tube rack, scalpel blade, Gel ink pen, syringe-10cm^3, Plastic ruler with mm, tile, forceps filter paper, Masking tape. Method: 1) Three test-tubes, A, B and C were labeled and initials of experimenters were applied with the date: January 29, 2013. 2) A syringe was used to put 10cm^3 of water in tube A and 5cm^3 in tube B along with 5cm^ 20 percent sodium chloride solution and 10cm^3 20 percent...

    Cell wall, Concentration, Osmosis 1458  Words | 4  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

    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 has low solute concentration and the other has high...

    Chemistry, Concentration, Osmosis 460  Words | 3  Pages

  • Effect of Sucrose Solution on Osmosis

    Effect of Sucrose Solution on Osmosis Aim: The aim of the experiment is to show how varying the concentration of sucrose solution affects osmosis by changing different molar solutions of sucrose and water and how it affects the potato. Introduction: In this investigation I will be exploring the effect of varying concentration of sucrose sugar solution on the amount of activity between the solution and the potatoes. Osmosis is the movement of water molecules across a partially...

    Chemistry, Concentration, Diffusion 1024  Words | 6  Pages

  • The Effect of Concentration Gradient on Osmosis

    The Effect of Concentration Gradient on Osmosis Abstract: Osmosis is the passive movement of water from an area of higher concentration to an area of lower concentration, usually across a membrane (Thorpe 2013). Tonicity is the ability of a solution surrounding a cell to gain or lose water (Reece 2011). There are many factors that affect the rate of osmosis. These include temperature, surface area, difference in water potential, pressure, light and dark and most importantly what we will be...

    Diffusion, Liquid, Solution 639  Words | 7  Pages

  • How does the relationship between salt concentration effect osmosis in the aquatic plant Elodea?

    How does the relationship between salt concentration effect osmosis in the aquatic plant Elodea? Quantitative data From observing the cells under a microscope, we see that they are continuously moving and therefore are alive. We have observed that when the cells are in the 10% sodium chloride, the chloroplasts are positioned to the sides of the cell wall and the cytoplasm is more expanded. Cells in the distilled water are slightly smaller than the cells in the sodium chloride solution and...

    Cell, Cell membrane, Cell wall 1289  Words | 4  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 and Water Potential

     Osmosis and Water Potential Year 11 Emary Venter INTRODUCTION: The cell is the basic unit of living things, and is made up of multiple organelles. Organelles are membrane bound subdivisions, each specialised for a specific function. This experiment looks at the Plasma Membrane, which is a semipermeable layer surrounding the cell. It’s primary job is to control what goes in and out of the cell. Molecules can move across this membrane in either an active movement or a passive movement...

    Chemistry, Concentration, Diffusion 1337  Words | 5  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

  • Osmosis and Cell

    Name: ______________________________________ Date: ________________________ Student Exploration: Osmosis Vocabulary: cell membrane, concentration, diffusion, dynamic equilibrium, osmosis, semipermeable membrane, solute, solvent Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Suppose you were trapped on a desert island with no sources of fresh water. Should you drink water from the ocean? Explain why or why not. _________________________________________________________________________ ...

    Cell membrane, Chemical equilibrium, Chemistry 962  Words | 7  Pages

  • Investigating Osmosis

    Osmosis is the diffusion of water molecules across a semi-permeable membrane. Diffusion is the movement of molecules from an area of high concentration, to an area of low concentration. So, Osmosis is the movement of water molecules from an area where there are lots of water molecules to an area where there are few water molecules. Our aim is to find the concentration of dissolved substances in the cells of a potato using Osmosis. I predict that the potato in the higher concentration of salt...

    Chemistry, Concentration, Mass 651  Words | 3  Pages

  • Investigating the Water Potential of Potato Cells

    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 compared to the inside...

    Chemistry, Concentration, Diffusion 1635  Words | 4  Pages

  • The Effect of Solute Concentration on Osmosis in Potatoes.

    Title of investigation: The effect of solute concentration on osmosis in potatoes. Research question: What is the solute concentration of a potato? Hypothesis: Osmosis is the movement of water across the membrane from an area of high concentration to an area of low concentration. The osmosis continues until the solute concentrations are equal in both areas. In this experiment, we put pieces of potatoes into test tubes with sugar solutions of different concentrations and leave them there over night...

    Chemistry, Concentration, Gas 943  Words | 3  Pages

  • An investiagtion to establish the isotonic point of potato cell sap

    investigate the effects of osmosis on potato cell sap. I will test potato cylinders in different strengths of sucrose solution and record any results in a table. I will then analyse my findings and work out the isotonic point of the potato cell sap. Prediction I have looked at my scientific knowledge from the background theory I carried out and I will base my prediction upon this information. In this experiment, I expect the different concentrations to show fairly noticeable effects on the lengths...

    Carbohydrate, Concentration, Glucose 1085  Words | 5  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

  • Diffusion and Osmosis

    Lab 3: Diffusion and Osmosis Osmolarity of Plant Cells In this class, we learned about hypertonic, hypotonic, and isotonic solutions. Hypertonic solutions have a higher concentration of solutes outside of the membrane, hypotonic solutions have a lower concentration of solutes outside the membrane, and isotonic solutions have an equal amount of solutes inside and outside of the membrane (Morgan & Carter, 66). When the solute concentration is not equal, the water...

    Chemistry, Concentration, Diffusion 1606  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

  • Rate of Osmosis

    Abstract This investigation was undertaken in order to observe the effects of changing the temperature of the solution that a potato cube is placed in. The temperatures that were tested in this investigation were 0°C, 20°C (room temperature), and 70°C. This investigation tested the hypothesis: The rate of osmosis will increase as the temperature increases 2x2x2cm cubes of potato were weighed and then placed into 100mL of 10% NaCl solutions for 10 minutes. After 10 minutes the cubes were again...

    Concentration, Diffusion, Error 1754  Words | 7  Pages

  • Solute Concentration of Potatoes

    Solute Concentration of Potatoes Block 2-2 Purpose: To determine the concentration of solute in the potato’s cytoplasm by measuring the change in mass after the process of osmosis. Materials and Equipment: Refer to Biology 12 Lab Manual – Investigation 13 Procedure: Refer to Biology 12 Lab Manual – Investigation 13 Data and Observations: The Potatoes change in mass after the process of Osmosis Test Tube # | Concentration of Sucrose...

    Cell biology, Cell wall, Chemistry 898  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

  • The Effect of Osmosis on Potato Cells

    Introduction In this experiment I am going to investigate the effect of varying concentration of a differing glucose solution on the amount of osmotic activity, between the solution and a potato tuber of a given size. The purpose of this experiment is to demonstrate how living cells rely on osmosis, the diffusion of water.   Osmosis is the movement of water molecules (H20) from a region in which they are highly concentrated to a region in which...

    Cell, Cell membrane, Cell wall 3526  Words | 12  Pages

  • Osmosis: Sodium Chloride and Onion Cells

    Osmosis/Plasmolysis Lab Name: Problem: How do solutions of various salt concentrations influence osmosis in relation to an onion cell? Materials: (per student group): red onion epidermis forceps, dropper distilled water NaCl solution paper towels microscope slide cover slip Procedure 1. Make a wet mount of the red onion epidermis. 2. Examine under low power. When you have a clear view of several cells, switch to high power. Make a labeled drawing...

    Cell membrane, Cell nucleus, Onion 442  Words | 3  Pages

  • Osmosis Lab

    isThe effect of sucrose concentration on the 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...

    Concentration, Diffusion, Osmosis 1455  Words | 5  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

  • 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

  • Bio Potato Core Osmosis

    DCP and CE Potato Core Osmosis #2 ...

    Concentration, Membrane biology, Osmosis 754  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 in Potatoes

    Potato Osmosis Introduction: A shipwrecked sailor is stranded on a small desert island with no fresh water to drink. They know they could last without food for up to a month, but if they didn't have water to drink they will be dead within a week. Hoping to postpone the inevitable, their thirst drives them to drink the salty seawater. They are dead in two days. Why do you think drinking seawater killed the sailor faster than not drinking any water at all? Today we explore the cause of the sailor's...

    Cell wall, Chemistry, Concentration 733  Words | 3  Pages

  • potato lab

    Potato Cell Cytoplasm Composition PURPOSE: To determine the concentration of salt in the cytoplasm of potato cells HYPOTHESIS: Increase in salt concentration results in a hypotonic solution where the mass of the potato increases due to the movement of water into the cell. On the other hand, decrease in salt concentration results in a hypertonic solution where the mass of the potato decreases due to the movement of water outside the cell. MATERIALS: Potato Forceps Stopwatch Scalpel Test...

    Cell biology, Concentration, Mass 773  Words | 5  Pages

  • Osmosis: Cell Wall and Salt Water Solution

    densa cells to a salt solution. Background Information: Diffusion is when substances spread throughout a liquid or a gas (high to low). Osmosis is the diffusion of water through a selectively permeable membrane (a type of diffusion). In plant cells it is also referred to as plasmolysis. Plasmolysis affects the cells ability to work properly (homeostasis). Plant cells are homeostatic when their central vacuole is filled with water. Surrounding a plant cell are two layers called the cell wall and...

    Cell, Cell biology, Cell membrane 559  Words | 3  Pages

  • Determining the Water Potential of Potato Cells

    Determining the Water Potential of Potato Cells Introduction: Water potential was defined above as an expression of the tendency of water to diffuse from one region to another. Water potential is a numerical value that must be determined for a given temperature and pressure. In this exercise you will determine the water potential of potato cells at room temperature and ambient pressure by placing cores of potato tissue in sucrose solutions of different concentrations and measuring the net movement...

    Cell, Cell biology, Cell membrane 2016  Words | 7  Pages

  • Potato osmosis lab

    Research Question: Which salt solution caused the sailor to die? Hypothesis: If the sailor drank the 40% salt water solution, then would die sooner, 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...

    Dehydration, English-language films, Kilogram 292  Words | 3  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 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 and Potato Tuber

    water relative to osmotically active substance (OAS) in cells must be maintained within a reasonable range. The one way to estimate optimum water content is to find osmolarity of plants cells. Osmolarity can be indirectly measure by comparing change in weight and volume when plant cells are incubated in OAS solution of known molarity. Estimated osmolarity of plant cells is the molarity of solution at which weight or volume of the plant cells does not change, means there is no net loss or gain of water...

    Cell biology, Cell membrane, Cell wall 1095  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

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