Preview

Sucrose And Osmosis Experiment

Good Essays
Open Document
Open Document
549 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Sucrose And Osmosis Experiment
In this experiment, one of the big is osmosis, and how it had the overall impact in this excitement a little on osmosis. Osmosis takes place when two solutions of different concentrations are separated by a semi-permeable membrane in which the solvent can pass through but not the solute. In our experiment, we used a sucrose solution that will be a hypotonic concentration of solute. This tells us that the solution has a lower concentration of water than does the cells. Therefore, due to osmosis, the cells will gain water weight also proven in the experiment given.
If osmosis isn’t taking place usually diffusion is at work Diffusion is the net passive movement of particles from a region in which they are in higher concentration to regions of
lower
…show more content…
There is three types tonicity that come into play with osmosis. The first one we know is hypotonic. If the extracellular fluid has lower osmolarity the fluid inside the cell, it’s said to be hypotonic this means less than the cell, and the net flow of water will be into the cell.in the reverse case, if the extracellular fluid has a higher osmolarity than the cell’s cytoplasm, it’s said to be hypertonic. Hyper means greater than to the cell, and water will move out of the cell to the region of higher solute concentration. The last term would be isotonic which mean the same extracellular fluid has the same osmolarity as the cell, and there will move out of the cell to the region of higher solute concentration. Hypotonic, hypertonic, and isotonic are relative terms.
That is, they describe how one solution compares to another in terms of osmolarity. For instance, if the fluid inside a cell has higher osmolarity. A good example to prove my point would by are an experiment of how it's hypotonic. As the cell goes into the water the fluid of the water in the beaker will flow into sucrose cell the longer it’s the cell the more water weight it will gain making it a hypotonic

You May Also Find These Documents Helpful

  • Good Essays

    6. When a cell is placed in a hypotonic solution, what happens to the cell? swells…

    • 726 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Biolab 1208 Lab Report

    • 840 Words
    • 4 Pages

    Introduction: The biological membranes are composed of phospholipid bilayers, each phospholipid with hydrophilic heads and hydrophobic tails, and proteins. This arrangement of the proteins and lipids produces a selectively permeable membrane. Many kinds of molecules surround or are contained within cells, but water is perhaps the single most important molecule in any living system (Hayden and McNeil 2012). Since water molecules are so small, they are constantly going into and out of the cell. Osmosis is a situation where more water molecules are moving across the membrane in one direction than the other (Hayden and McNeil 2012). During osmosis the net movement of water molecules will be from a solution that has a lower osmotic concentration to a solution that has a higher osmotic concentration. When a solution has a higher concentration of solute within the cell than out, it is called hypertonic. When a solution has a lower concentration of solute within the cell than out, it is called hypotonic. And when there are equal concentrations inside and out of the cell, it is called isotonic. The relative osmotic concentration can be determined by a change in mass of the tissue.…

    • 840 Words
    • 4 Pages
    Better Essays
  • Satisfactory Essays

    bio potato lab

    • 368 Words
    • 1 Page

    7. Humans' cells are in isotonic solution that keeps equal number of solutes both inside and outside of the cell. If the cell is put in a hypotonic solution, water will move into the cell. This causes the cell to burst and die. On the other side, if you put the cell in a hypertonic solution, water will move the outside of…

    • 368 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    Associated with symptoms that result from cell shrinkage as water is pulled into vascular system…

    • 1353 Words
    • 6 Pages
    Satisfactory Essays
  • Satisfactory Essays

    5. Osmosis is how excess salts that accumulate in cells are transferred to the blood stream so…

    • 306 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Cells must move materials through membranes in order to maintain homeostasis. The cellular environment is aqueous, indicating that the solutes dissolve in the solvent, water. When a cell is hypertonic, or hypotonic, to its surroundings, it tries to make concentration of solution inside and outside itself equal. However, the solutes are too big to pass the cell membranes without the help of channel proteins, or transport proteins. Water may freely pass through the membrane by osmosis, which requires no energy. Thus, the cell starts to take in, or release, water until it is isotionic to its…

    • 468 Words
    • 2 Pages
    Good Essays
  • Good Essays

    egg lab

    • 358 Words
    • 2 Pages

    Diffusion is the simplest form of passive transport. Using its own energy molecule will move from areas of higher solute concentrations to areas of lower concentrations until a balance is reached. Osmosis is also a form of passive transport.Osmosis occurs when water molecules diffuse across the cell membrane from an area of higher solute concentration to an area of lower solute concentration.…

    • 358 Words
    • 2 Pages
    Good Essays
  • Better Essays

    Osmosis Lab Report

    • 1250 Words
    • 5 Pages

    This makes sense because the farther the cell is from osmotic equilibrium, it will gain weight faster (McCutcheon 1926). This supported our prediction. The increase in osmotic rate because of an increase in solute concentration is because water moves from a solution of low solute concentration to a solution with high solute concentration. This means water rushes into a solute of higher concentration faster than a low concentration. This is why the artificial cell with 60% sucrose solution had the highest corrected cumulative change in weight and the fastest osmotic rate. The artificial cell containing water in 40% sucrose solution had a negative osmotic rate because water was leaving the cell and osmosis was occurring in the opposite direction. In this experiment, only one bag of water was placed in 40% sucrose solution. In other experiments, adding two more bags of water and placing them in 20% and 60% sucrose solutions could be tested to see if the rate of osmosis is similar to their 20% and 60% bag counterparts in water. Also, an experiment could be performed to show temperature is a factor in osmotic rates by having the same solute concentration in solutions and placing bags filled with water into them, each having a distinct…

    • 1250 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Osmosis And Diffusion

    • 942 Words
    • 4 Pages

    When conducting the osmosis lab, the initial tonicity of the cell was 0 grams. The beginning weight of the cell was 18.75 grams and…

    • 942 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    t Movement of water between two compartments by a membrane permeable to water but not to a solute…

    • 1952 Words
    • 31 Pages
    Satisfactory Essays
  • Good Essays

    Collative

    • 613 Words
    • 2 Pages

    B. In biological systems if a cell is placed into a salt solution in which the salt concentration in the solution is lower than in the cell, the solution is said to be hypotonic. Water will move from the solution into the cell, causing lysis…

    • 613 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    Osmosis, a type of diffusion, is the movement of water across a selectively permeable membrane. In osmosis, water diffuses across the area of lower solute concentration to that of higher solute concentration until the solute concentrations of the environment and the cell are equal. Tonicity, which is the ability of a solution to gain or lose water due to osmosis, results in an environment that is isotonic, hypertonic, or hypotonic. A hypotonic solution has a lower solute concentration than the cell so water moves into the cell causing the cell to swell. A hypertonic solution has a higher solute concentration than the cell so water moves out of the cell and into the solution causing the cell to shrink. In an isotonic solution, concentration of solutes is equal inside and outside the cell so water moves across the membrane in both directions retaining the same cell size. In all three environments, water will move until it reaches equilibrium. In this experiment, the solution in which the dialysis tube was placed in is determined by the mass in grams of the dialysis tube before put in the solution compared to the mass after. If the mass increases, the dialysis tube was in a hypotonic solution since water went in the dialysis tube. If the mass decreases, the dialysis tube was in a hypertonic solution since water left the cell. If the mass stays the same, then the dialysis tube was in an isotonic solution since water went in and out of the dialysis tube at equal rates.…

    • 1017 Words
    • 5 Pages
    Powerful Essays
  • Satisfactory Essays

    Active Transport

    • 368 Words
    • 2 Pages

    22. Hypotonic solution- A solution in which water molecules are moving into the cell, causing it to swell…

    • 368 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Osmosis Lab Report

    • 2530 Words
    • 11 Pages

    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 progress in which a cell is in its balanced state is called equilibrium. Diffusion is a functioning way for cells to reach their equilibrium. Equilibrium is reached by controlling what enters and exits the cell through a cell membrane that selectively filters molecules by slowing down their movement, allowing them to pass through, or not allowing them to pass through the membrane. Diffusion and osmosis go hand-in-hand. Osmosis is generally the same as diffusion, however, deals solely with water. Osmotic pressure is the pressure of a solution against a semi-permeable membrane to prevent water from flowing into the membrane. In this lab, we are going to study tonicity; tonicity is the measure of this osmotic pressure and is the differential of pressure between two solutions separated by a selective membrane. To help identify the relative concentrations of solute particles of different solutions, we must understand that there are three possible differences in concentrations between a cell and its environment. The terms hypotonic, hypertonic, and isotonic are used in referring to the identification of the possible relative concentrations. The first term, hypotonic, is the solution that contains lower concentrations of solute particles, which means that the concentration inside the cell is greater than the concentration outside. A hypotonic solution causes the cell to swell in size. The second term, hypertonic, is the solution that contains higher concentration of solute…

    • 2530 Words
    • 11 Pages
    Good Essays
  • Powerful Essays

    Osmotic Pressure Report

    • 1163 Words
    • 5 Pages

    Osmosis is a passive movement of water molecules going across the partially permeable membrane. It is a very spontaneous process due to the downhill energy flow known as “water potential” by which, water molecules move from a region of higher water potential to a region of lower water potential. Pure water has the highest water potential value which is zero ( = 0 ). This process occurs in cells, regardless of animals or plants. Thus, osmotic pressure is a term used when the pressure exerted by water molecules passes through a partially permeable membrane during osmosis. Osmotic pressure occurs whenever there is a semi permeable membrane that acts as a barrier to separate two different concentrations. The higher the concentration between the solutes, the higher the osmotic pressure. Osmotic pressure can be classified into three tonicities, which are Hypotonic, Isotonic and Hypertonic. Hypotonic is a situation when the concentration of water in cells are more than water outside the cell, causing water to flow into the cell until it ruptures and plasmolyse in animal cell and plant cell respectively. Isotonic is a situation where the concentration of water of cells is equal to the concentration of the water in the surrounding environment.…

    • 1163 Words
    • 5 Pages
    Powerful Essays