Osmosis Lab Report

627 Words2 Pages
bulb-icon

Recommended: Effect of concentration on osmosis

Osmosis is the process of a solvent passing through a semipermeable membrane from a less concentrated solution to a higher concentrated solution, creating equilibrium on both sides. It is possible to test this process in multiple ways, one being the use of celery plants (which are made mostly of water) and inserting them into solutions containing different solvents. This will test the affect of different solvents on the osmosis of the water in celery plants. If the celery is placed in different solutions, then the change in mass of the celery will differ according to the different solutes tested. Osmosis is a fairly straightforward subject in science. It is not commonly researched, and people aren’t constantly finding new discoveries, because everything to know about osmosis has already been discovered. If an object with a low water concentration is placed in a glass with high water concentration, the water from the glass will enter …show more content…

This is called a hypertonic process. If the situation is reversed, and water is entering the object from the glass, this process is known as hypotonic. When both the glass and the object in the glass have an equal water and solute concentration, this is known as an isotonic state. The process of osmosis has a few limiting factors. Osmosis can only occur through a semipermeable membrane, meaning there are proteins on the phospholipid bilayer that regulate what can come in and out of the cell. It also takes longer for the two sides to become equal if the solvent particles are bigger on one side, and if the particles are less crowded. If the particles are bigger, it is harder to get them through the membrane. If the two sides are almost at an equal state of water and solute concentration, it will take longer for the water to diffuse to the other side of the

Show More
Related

  • Investigate the Osmotic Point of Equilibrium in a Potato

    1901 Words  | 4 Pages

    osmosis, it can works both ways so that it can pass into and out of

    Read More

  • Investigation the Water Potential of a Root Vegetable

    462 Words  | 1 Pages

    Investigation to Find the Water Potential of a Root Vegetable Introduction Water potential is the tendency of water molecules to move from one place to another. Osmosis is the movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane. I will be investigating the water potential of a carrot to find out at what concentration of salt solution (molar dm-3) equilibrium can be sustained between the net movement of water molecules in to the carrot cells, and the net movement of water molecules out of the cells, therefore finding out the water potential of the carrot, and at what concentration of salt solution the movement of water molecules ceases, and what concentration the water is at inside the carrots cells. I will need to include and explain the relevant AS knowledge demonstrated by this investigation. This includes ideas about osmosis, explaining also how this can affect the structure of plant cells, and showing extremes such as plasmolysis.

    Read More

  • Marc Osmosis Case

    706 Words  | 2 Pages

    Considering the fact that Marc has both been sweating and drinking minimal amounts of water, Marc is now dehydrated. This means he has less than the required amount of water for his body to complete the processes necessary to maintain its health. As stated in the question, the process of sweating causes the loss of more water than solutes. This means that as the level of water decreases, the level of solute concentration will increase, creating a change in the water to solute ratio.

    Read More

  • 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

  • How Various Mechanisms By Which Substances Cross The Cell Me

    882 Words  | 2 Pages

    If the concentration of one side of the membrane is greater than the molecules will travel from the higher to lower concentration. Eventually there will be a dynamic equilibrium and there will be no net movement of molecules from one side to the other. Osmosis is the diffusion of water. Like diffusion, the water moves from a region of higher water potential to a region of lower water potential.

    Read More

  • Osmosis Lab Report

    984 Words  | 2 Pages

    In osmosis, water can travel in three different ways. If the molecules outside the cell are lower than the concentration in the cytosol, the solution is said to be hypotonic to the cytosol, in this process, water diffuses into the cell until equilibrium is established. If the molecules outside the cell are higher than the concentration in the cytosol, the solution is said to be hypertonic to the cytosol, in this process, water diffuses out of the cell until equilibrium exists. If the molecules outside and inside the cell are equal, the solution is said to be isotonic to the cytosol, in this process, water diffuses into and out of the cell at equal rates, causing no net movement of water. In osmosis the cell is selectively permeable, meaning that it only allows certain substances to be transferred into and out of the cell.

    Read More

  • Osmosis Research Paper

    1647 Words  | 4 Pages

    Osmosis is the facilitated diffusion of water across the cell membrane of a cell. The inside layer of the cell membrane is hydrophilic, meaning water cannot easily pass through the membrane. The cell membrane has to have aquaporins, which are water channel proteins, that move the water across the membrane. If there is a water and salt solution outside the cell, the salt can enter the cell by diffusion, but the cell membrane is not permeable to the water. Because there is more solute solution inside the cell, there is less water. The aquaporins move the water across the membrane until equilibrium is reached.

    Read More

  • Effect Of Sucrose Hypothesis On The Concentration Of Osmosis

    1066 Words  | 3 Pages

    If the concentration of sucrose increases, then the mass of the potato will decrease. However, if the concentration of the solution in the beaker is less than that of the potato (such as distilled water), then the mass of the potato will increase. So, as the concentration of sucrose increases the rate of osmosis increases.

    Read More

  • The Effect Of Sucrose Concentration On The Rate Of Osmosis

    119 Words  | 1 Pages

    The rate of osmosis for bag 1 was .0036 g/min. The water flowed inside and outside of the bag. Bag 2 had a rate of osmosis of .0321 g/min; the water flowed inside the bag. Bag 3 had a .05 g/min rate of osmosis; the water flowed inside the bag. Bag 4 had a .0921 g/min rate of osmosis; the water flowed inside the bag. Bag 5 was the only bag that the water flowed solitary outside the bag with a -.0807 g/min rate of osmosis. Figure 1, illustrates the increase, constancy, or decrease of the bag’s mass. The general pattern shown in the data was that when the sucrose concentration increases the rate of osmosis increased as well.

    Read More

  • Osmosis Case Study

    308 Words  | 1 Pages

    - The nurse’s mistake will increase the saltiness due to the double amount of saline in the bag.

    Read More

  • Seawater Desalination

    965 Words  | 2 Pages

    ... of films on liquids” (12). What things are larger than 1 Angstrom? A few are bacteria, viruses, organic matters and small planktonic organisms but we will get into this later (1). When the membranes separate two water types, water molecules pass from the less concentrated zone into the more concentrated zone in order to balance ionic forces. To reverse the natural flow of water through the membrane, pressure greater than osmotic pressure has to be applied on the concentrated solution. Providing pressures from 70 to 84 bars, 40 to 60% of seawater or brackish water is converted into fresh water by reverse osmosis. The influent saline solution is divided into two phases. Permeate is the first which is the fresh water free of particulates and dissolved impurities and the second is the concentrate stream which is brine enriched with suspended and dissolved solids (1).

    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

  • 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

  • Desalination Of Ocean Water

    992 Words  | 2 Pages

    The most common type of membrane separation is called reverse osmosis. Seawater is forced through a semipermeable membrane that separates salt from water. Because the technology typically requires less energy than thermal distillation, most new plants, like Tampa's, now use reverse osmosis.

    Read More

More about Osmosis Lab Report

Open Document