Potato Osmosis Lab

836 Words2 Pages

Tonicity effects on Plant & Animal Cells In order to understand the concept of the three solutions; hypertonic, hypotonic, and isotonic, used in the experiment one must learn to understand the concept of how and why molecules move by processes of osmosis. As conducted, this hands-on experiment will help you examine water molecule movement when exposing the plant cell that make up the potato to be either hypertonic or hypotonic solutions. Although, plant cells have rigid cell walls external to the plasma membrane versus animals that do not make a difference that can result in an opposite outcome when being placed in these two solutions. I believe that experiment b (potato mixed with salt and water) will be more affected since it will conflict …show more content…

First of all, I started with the two cups to help provide the separation of the two potato slices and that helped by keeping the different mixed water solutions apart from one another by sitting in the cups. After that, I poured salt into one of the cups to help differentiate the effects in the potato by providing a solution into the water to help see an outcome in the slice. In order to put the right amount of salt into the cup, I also had to measure it in tablespoons to get the exact amount without going over the limited amount of salt needed in the experiment. With that being said, I then used a knife and tape measure to cut the precise size of the potato needed to conduct the experiment in order to fit in the cup. Not including the potato and water itself to explain the different solutions used and created as mixed in together. The results show that the potato becomes hypertonic by affecting its’ tonicity as for the other slice becoming hypotonic leaving no change and creating osmosis.
Tonicity Effects on Plant Cells
Before After Experiment A Experiment B Experiment A Experiment B
Length 7 cm 7 cm 7 cm 6 cm
Width 1.5 cm 1.5 cm 1.5 cm 1.5 cm
Texture Smooth inside, rough outside, with noticeable spots Smooth inside, rough outside, with noticeable spots Smooth

Show More
Related

  • The Effect of Solute Concentration on the Rate of Osmosis

    2872 Words  | 6 Pages

    The Effect of Solute Concentration on the Rate of Osmosis Aim: To test and observe how the concentration gradient between a potato and water & sugar solution will affect the rate of osmosis. Introduction: Osmosis is defined as, diffusion, or net movement, of free water molecules from high to low concentration through a semi-permeable membrane. When a substance, such as sugar (which we will be using in the experiment we are about to analyse), dissolves in water, it attracts free water molecules to itself, and in doing so, stops them from moving freely. The effect of this, is that the concentration of (free) water molecules in that environment goes down. There are less free water molecules, and therefore less water molecules to pass across a semi-permeable membrane, through which sugar molecules and other molecules attached to them are too big to diffuse across with ease.

    Read More

  • Osmosis Experiment

    1352 Words  | 3 Pages

    Conclusion In my conclusion, the potatoes with the lowest concentration gained the most mass, and would become hard relating back to the Turgor theory I stated earlier. In contrast to this, the potatoes in the most concentrated solution lost the most weight thus becoming plasmolysed and limp also relating back to the background I have mentioned earlier. Evaluation In general the experiment was succesful the results were consistent and also were in accordance with the theories made at the start.. The experiment could have been improved by: · More subjects used instead of potatoes · More potatoes · Wider time ranger · Different molarities Using this variety of methods could have improved the experiemnt, however I was generally satisfied with the results of this osmosis experiement.

    Read More

  • Osmosis Essay

    1438 Words  | 3 Pages

    The purpose of this experiment is to investigate the effect of changing the concentration of sodium chloride solution on the rate of osmosis in tubes of potatoes. This was maintained using equal measurements of the potato tubes and applying them into the different concentrations of sodium chloride, 0%, 2%, 5%, 10%, 20% and 26%, in beakers then measuring the change in mass of the potato tubes afterwards. The time taken for all potato tubes to be placed in solution was 15 minutes. Can the concentration gradient of the sodium chloride solution influence on the rate of osmotic diffusion undergone by the potato tubes?

    Read More

  • Osmosis Lab Report

    984 Words  | 2 Pages

    The experiment is aimed at giving a better understatement of osmosis process and the different conditions in which osmosis occurs.

    Read More

  • Investigate the Osmosis of Potato Cells in Various Salt Solutions

    2516 Words  | 6 Pages

    Investigate the Osmosis of Potato Cells in Various Salt Solutions. Introduction I have been asked to investigate the effect of changing the concentration of a solution on the movement of water into and out of potato cells. I will be able to change the input of my experiment. The input variable is the concentration of the solution.

    Read More

  • The Effect of Osmosis on Potato Chips

    882 Words  | 2 Pages

    I am going to carry out an experiment to measure the change in mass of

    Read More

  • Effect Of Sucrose Hypothesis On The Concentration Of Osmosis

    1066 Words  | 3 Pages

    If a plant cell is places in a hypotonic solution the cell has a lower water concentration to that of the solution. Water will move into the cell by osmosis from a high water concentration outside the cell to a lower water concentration inside the cell through a selectively permeable membrane. The cell becomes turbid

    Read More

  • Water Potential of Potato Cells

    678 Words  | 2 Pages

    At point A the graph shows that no change in mass, of the potato, would have have occurred had we used a 0.2 (m) sucrose solution. This suggests that the concentration of water inside the potato would have been equal to the solution outside the potato. At point B (plain water), there is no indication that the cell is increasing in mass. This is because the cell is fully turgid and no more water can enter.

    Read More

  • Experiment to Find the Reaction of Potato Chips in a Salt Solution

    963 Words  | 2 Pages

    However, the solution could be more water than salt so the water from the solution could be more concentrated than the water inside the potato cells. If so then In theory the water in the solution should diffuse into the potato. cells and increase in mass. Apparatus: Potato to perform the experiment on. Thin metal tube to cut potato chops with.

    Read More

  • Investigate the Rate of Osmosis in Different Vegetables (Carrot, Potato, Swede, Parsnip and Sweet Potato)

    1960 Words  | 4 Pages

    When I am not using them I will place them away from my experiment and

    Read More

  • Potato Osmosis Lab Report

    754 Words  | 2 Pages

    Osmosis in Potato Tubes Osmosis: Osmosis is the movement of water molecules through a semi-permeable membrane from a high concentration to a low concentration. Diagram: [IMAGE] [IMAGE] Aim: To see the effects of different concentration of sugar solution on Osmosis in potato tubes. Key factor: In the investigation we change the sugar solution from: 0%-10%-20%-30%-40%-50% this is the independent variable; the dependant variable is the change in mass. Prediction: I predict that all the potato tubes in pure water or low concentration sugar solution will swell because water enters their cells by osmosis.

    Read More

  • Enzyme Lab Report Potato Lab

    703 Words  | 2 Pages

    I blended on high to make the potatoes more liquid-like. I grabbed the cheesecloth and placed on the top of the blender. I poured the potato extract on the container and labeled it. I found out that I have to make 1% sugar solution so I grabbed the sugar and measured into 5 grams on the scale. I added 5 grams of sugar on 250 ml graduated cylinder and poured the water into the cylinder. I mixed the sugar with water and poured it into the saucepan. I refilled the water into the graduated cylinder and poured into the saucepan. I turned on the heat of the stove and saw the sugar dissolved. I poured into a container and labeled 1% sugar solution. I repeated the same thing with 1% salt solution by using 1 gram of salt and filled the water into graduated cylinder by 100 ml. I answered question three. In the first experiment, I grabbed four transfer pipets and used it to put solutions into the test tubes by 3ml. I labeled it and placed into the plastic cups so it can stand upright. I grabbed each test tube and poured 2 ml of catalase solution into it. I also tapped and swirled to measure the bubbles by using the ruler. I wrote the numbers into the lab report. In the second experiment, I labeled the room

    Read More

  • How Osmosis affects Potato chips in Different Concentrations

    2689 Words  | 6 Pages

    When you place a potato chip in a salt or sugar solution, then if the

    Read More

  • Lab Report: Concentration of Sucrose Affect on Osmosis

    1609 Words  | 4 Pages

    The variables I could change would be the temperature of the solution. The higher the temperature of the solution the more osmosis would occur. The surface area of the potato strip, the larger the surface area the more osmosis would occur as there would be more area exposed for osmosis to take place. The concentration of the solution will affect osmosis, the higher the concentration the less osmosis would take place. The duration of the experiment also affects how much water is gained/lost by osmosis as the longer the duration is, the more osmosis would take place (osmosis would stop as soon as it reaches an equilibrium of water content inside and outside the cell.

    Read More

  • The Effect of Salt Solution Concentration On The Mass Of Potatoes

    1008 Words  | 3 Pages

    Prediction I think that when the potato is placed in distilled water the potato mass will increase. This is because water, has, if pure, a weaker concentration than the potato, and the water molecules move in through a partially permeable membrane by osmosis. If the potato is in a high concentration salt solution, the potato mass will decrease because the potato is less concentrated than the salt solution, and the water will move through the partially permeable membrane into the stronger solution. However, if the potato mass stays the same after the experiment, this means that the water/salt solution and the potato must be of equal concentration.

    Read More

More about Potato Osmosis Lab

Open Document