Vinegar Egg Osmosis

During the course of this lab, an egg is placed in different solutions to observe its reactions to each individual solution. The egg is first weight when it is at its original state in order to differentiate a change in its mass. Then it is placed in each solution for about 24 hours in order to see a visible and evident reaction. The reaction involves a passive transport known as osmosis. Osmosis is the transfer of water across a selectively permeable membrane in order to find a dynamic equilibrium, which means both sides are completely balanced. However, only water is allowed to navigate inside and outside of the cell during osmosis. Water moves from a higher concentration to a lower concentration, which means that depending on the egg’s water supply compared to each substance, its mass should change. This was observed in 3 different solutions, which include vinegar, corn

The data supported this hypothesis, because in chart two, as the cold temperature lost 3.6% of mass, the room temperature lost 5.1% of mass, and the hot solution lost a value 8.7% change of mass after twenty minutes. This showed that as the hypertonic solution were hotter, the sucrose sucked the water out of the egg at a much faster rate, than the colder solution, due to the energy of the molecules. This trend of data was also shown in figure two, the green line representing warm water bath reached a much lower percent change in mass than either of the ice or room temperature solutions

For the experiment to be carried out it was required of the experimenters to first fill up two cups of the same height to the halfway point, filling one of the chosen cups with 6 tablespoons worth of table salt. Once done, it was required of the experimenters to stir the salt water solution to ensure that the salt had properly dissolved with a spoon. Once done, the two eggs would be inserted into the normal water, then the salt water – from which they determine a conclusion on data that was found.

The mass of the egg soaked in corn syrup decreased and the volume of the syrup in the beaker increased. There was a higher concentration of water inside the egg than outside, so the water moved across the membrane to leave the egg to go to where there was a lower concentration. The mass decreased since water was leaving the egg. The volume increased because the water from the egg added to the corn

Cells in all living things have an outer layer known as the cell membrane. The structure of the cell membrane consists of the phospholipid bilayer organized by the arrangement of hydrophilic heads and hydrophobic tails. It is a selectively permeable membrane, where it divides the outer environment from the interior of the cell. It can control substances moving in and out of living cells. Certain molecules like gases, water, and food are permitted to pass the membrane through the method of diffusion. Diffusion refers to the process in which molecules move on the concentration gradient, where they move from an area of high concentration to an area of low concentration. A type of diffusion is known as osmosis. It is the diffusion of water moving across the selectively permeable membrane. In this lab, students will be using eggs to construct an experiment to get a better study on how osmosis works in a cell. The eggs will be soaked in vinegar solution to remove their shells to expose each inner layer that resembles a selectively permeable membrane. The egg shell is composed of calcium carbonate that would dissolves in acidic solution such as vinegar. In the chemical reaction, it releases carbon dioxide gas. After the removal of the egg shell, it will be ready to be able to construct the experiment.

This explains passive transport by movement of molecules without adding energy. Osmosis is the result of diffusion. A process of water or any fluid moves from the area of less concentration of dissolved particles to a region of high concentration of dissolved particles across a semi-permeable membrane. Osmosis is important to the cell because the cell gains water along with important molecules and particle for growth. In the body there are three solute concentrations. First is isotonic solute which is two solutions that have the same osmotic pressure across a semi permeable membrane. In this solute it allows water to move freely across the membrane without changing the concentration of solutes on either side. The concentration of solutes is equal inside and outside the cell so water moves across the membrane in both directions maintaining cell size. The second is Hypotonic solution in this solution is it any solution that has a lower osmotic pressure than another solution. The solution has less solute and more water than another solution. The third and final is hypertonic solution and it has a greater concentration of solutes on the outside of a cell when compared with inside of a cell. The purpose of this experiment was to find the concentrations of solutes in the eggs by observing the process of osmosis. When the eggs are placed in different “tonic” solutions they increase in weight or decrease in weight. To properly measure the eggs they are removed from the beaker, dried with a paper towel and weighed on a scale in a weight

Our independent variable is the mass of the egg after being submerged into a sodium chloride solution. The egg began to increase in size due to the passing of the concentration gradients equilibrium. This is displayed in the results table using the average results. As the results table 1. And the graph above it shows, the hypothesis was proven correct with minor problems when compared to results in table 2. This showed there was dramatic differences in the data collected and this could be due to multiple factors. It was concluded that between two and five percent sodium chloride in 100mL water that the egg and the concentration reached an equal zero concentration

In this lab, two procedures were done in order to show how different types of solutions diffuse into each other. The use of corn starch and potassium iodide in the first procedure were to indicate how simple diffusion works. Because of the way that potassium iodide interacts with cornstarch, a dark blue color in the solution would indicate that diffusion had taken place. The second procedure used potato samples and a glucose solution. After a while, the potato samples were measured for a difference.

An egg has a semi-permeable membrane, thus processes like osmosis could occur. Osmosis is the movement of water molecules from an area of higher water concentration to an area of a lower water concentration. Osmosis is important, especially for living organisms, as they help distribute nutrients in the body. An egg’s mass would change when it is soaked in different substances. The goal of this experiment was to investigate how an egg changes through osmosis. This experiment was done to show how substances affect the mass of an egg. To start off, an egg’s mass was measured by putting the egg in a beaker then placing it on a mass scale. The beaker was then filled with vinegar and left alone for twenty-four hours. After a day, the egg was taken

Constant Variables: temperature of location, length of time egg is soaked for, amount of light received, same type of egg,

According to Sorrells.K (2012) "There are three levels to analyze my problem which are Micro, Meso and Macro." (pg.203-212). During micro level, I was feeling weird that I am going to talk or being in touch with a woman that I don't know. which was hard for me to accept and change myself believes. During my last 19 being surrounded by my culture only without facing other cultures that are different than mine makes me feel that world is huge and people are divers. Also, people need to explore and know other cultures. After that, I begin to think about my conflict in Meso level, I was thinking as in-group where I see my friends are talking and going out with a female because it's important to have a mix of male and female friends in USA. and

The question that is being asked in this lab is what happens when the egg is put in an acid bath, water bath, then a corn syrup bath. In the acid bath the egg will do something to the shell. The hypothesis that was created for the acid bath is that if the egg is put in the acid bath then the acid will destroy the cell because the acid will eat away at the calcium of the shell. The hypothesis that was created for the water bath then the egg will increase in mass because the water starts to fill the egg. The hypothesis that was created for the cron syp bath is that if the egg is placed in the corn syrup bath the egg will weigh less because the water will leave the egg and corn syrup eats away ah the egg. The

The purpose of this lab was to demonstrate osmosis and diffusion using model cells. As mentioned, osmosis is when water molecules passively move across a semi-permeable membrane (Russell et al., 2013). In the model cells, the dialysis tubing represents the semi-permeable membrane. Model cell one demonstrates that osmosis occurred because osmosis caused the water to move through the dialysis tubing and into the cell. On the other hand, model cell three showed that a cell would lose water via osmosis in a situation where the solution concentration is higher than the solution in the cell. Model cell one and model cell three both demonstrate that molecules move from high to low concentration. Consequently, this shows that my hypothesis, that osmosis and diffusion will occur between the solutions of different concentration, but not between the solutions of the same concentration, was correct. It is important to note possible errors that may have occurred during this experiment that may have skewed the results. For example, if the string was not tied tight enough around the ends of the model cells the solution inside the cells could have leaked out. This would have skewed the results of the experiment. Model cell two appeared to

Before starting this experiment, my hypothesis was that when egg number 1 is placed in distilled

Diffusion is the random movement of particles, caused by kinetic energy, from an area of higher concentration to an area of lower concentration. Once the two substances are in equilibrium, diffusion still occurs. However, the substances stay in equilibrium, as the random movement is equal across both sides. Osmosis is the diffusion of water, through a selectively permeable membrane. A selectively permeable membrane is a membrane that allows certain molecules to pass through itself, and is resistant to other molecules. Osmosis is a very important process by cells, with uses such as the absorption of water. Many cells are placed in solutions with a similar solute-solvent ratio, to prevent rapid intake or expulsion of water. Osmosis causes a change in turgor pressure, and in osmotic pressure. Tugor pressure is the pressure exerted on the cytoplasm on the cell caused by the intake or expulsion of water. Osmotic pressure is the pressure of the water If the turgor pressure in a cell is too great, than the cell may explode. If the turgor pressure inside the cell is too low, the cell will shrivel.