The Effect Of Osmosis In Gummy

In this experiment, I attempted to demonstrate the natural process of osmosis in life. To do so, five bags with semi permeable membranes containing different concentrations of sucrose or water were soaked in water or sucrose and their weight was measured at different time intervals. To minimize errors, I calculated the averages for each bag at each time interval for all the groups and observed that Bags 2, 3, and 4 which contained various concentrations of sucrose had a significant average net weight increase over time. While bag 5 that contained tap water and was soaked in a high concentration of sucrose, showed a substantial average net weight decrease. Both of these findings are due to the movement of water molecules across the semi permeable

My group and I conducted the experiment that estimates osmolarity by change in weight of potato tubers, this was conducted in order to explore the process of diffusion and osmosis and more importantly to investigate the question of “Does different concentrations of sucrose solutions have an effect on the final weight for the potato tubers?” In this experiment we estimated the osmolarity of potato tuber cores by submersing different potato cores into sucrose solutions of 0.0-0.6M, and weighing the potato. The results showed the weight of the potato tubers had the highest

In this study we constructed we researched whether different sucrose concentrations affect the rate of osmosis. In order to do this, we constructed artificial cells out of dialysis tubing filled with 20% sucrose and 40% sucrose and weighed them every 10 minutes for 90 minutes. In doing so, we concluded that the higher the sucrose concentration, the faster the rate of osmosis.

Osmosis is a form of diffusion that occurs when there is movement of molecules across a cell membrane in liquid. With the lab one will be able to see the size of three gummy bears change due to being soaked in multiple types of water overnight. Each gummy bear's mass and volume are recorded, and then placed in a beaker of tap, sugar, or salt water. The following day all three gummy bears are taken out to be remeasured after to see the effects on it from osmosis happening. In all of the gummy bears, both the mass and volume increase, resulting in the size of the bears to increase. The bear with the most percentage of change in mass and volume is the one in tap water. The least amount of change in mass and volume occurs in the cup with salt

1. What happened to the gummy bears when placed in distilled water? - The gummy bear swelled to about 476% from its original size! This happened because the distilled water molecules went through a process of osmosis into the bear, and the bear became the high concentration area that the water molecules moved to.

In this experiment, we will investigate the effect of solute concentration on osmosis. A semi‐permeable membrane (dialysis tubing) and sucrose will create an osmotic environment similar to that of a cell. Using different concentrations of sucrose (which is unable to cross the membrane) will allow us to examine the net movement of water across the membrane.

All cells contain membranes that are selectively permeable, allowing certain things to pass into and leave out of the cell. The process in which molecules of a substance move from an area of high concentration to areas of low concentration is called Diffusion. Whereas Osmosis is the process in which water crosses membranes from regions of high water concentration to areas with low water concentration. While molecules in diffusion move down a concentration gradient, molecules during osmosis both move down a concentration gradient as well as across it. Both diffusion, and osmosis are types of passive transport, which do not require help.

The reasoning behind this experiment is the examine whether the rate of osmosis is changed due to a change in temperature. It was hypothesized that the rate of osmosis will increase as the temperature of the sucrose is increased. The rate of osmosis was tested by using the different jars full of different temperate water and testing how high the water rose on an osmometer over a span of 20 minutes. An osmometer is a tool used to measure rates of osmosis. The different temperatures tested on a sucrose solution were 5 degrees Celsius, 20 degrees Celsius, and 37 degrees Celsius. Rates of osmosis were higher in the hot water than in the cold water and control. The results showed that the rate of osmosis increased as the temperature increased, henceforth the hypothesis was supported. In conclusion, the experiment showed how changes in temperature affect the rate of osmosis.

All organisms need to exchange particles such as food, waste, gas and heat with their surroundings. there are two different types of ways in which substances can enter or/and leave a cell. these ways are called Passive and Active. with in these there are different processes for example, in passive process there are diffusion, facilitated diffusion and osmosis and in the active process there is molecule and particle. in this assignment I am going to discuss all of these processes starting with diffusion.

A cell needs to perform diffusion in order to survive. Substances, including water, ions, and molecules that are required for cellular activities, can enter and leave cells by a passive process such as diffusion. Diffusion is random movement of molecules in a net direction from a region of higher concentration to a region of lower concentration order to reach equilibrium. Diffusion does not require any energy input. Diffusion is needed for basic cell functions - for example, in humans, cells obtain oxygen via diffusion from the alveoli of the lungs into the blood and in plants water

Table 1 shows the contents of the bags and the content of the concentration it was submersed in. Bags 2-4 each contain a solution of both sucrose and water. These bags were each put into beakers containing hypertonic solution. These bags gained weight over time because the water moved from its high concentration inside the beaker to the low concentration inside the membrane of the artificial cell, the membrane being the bags that consisted of dialysis tubing. The

Osmosis is when water passes through a cell membrane, it is also form of a diffusion, which is a form of passive transport. Osmosis will continue to until an equilibrium is reached which is when the solutions are isotonic. This means that the solution has the same amount of solute on both sides. If the solution is hypertonic, it has more solute in the solution. In this situation water will move towards it. if the solution is hypotonic, it has less solute in the solution. Whereas in this situation, water will move out of the solution.

This experiment was used to examine the hypothesis that: Osmosis is dependent on the concentrations of the substances involved.

Multi cellular organisms have a much smaller surface area to volume ratio. Many of their cells are not in contact with their surroundings so they con not only rely on diffusion to supply all their organs with oxygen and nutrients, as the distance from their surface to all cells is too fare. We are multi cellular and have special surface for gaseous exchange and for obtaining nutrients. However Single celled organisms are small, which means that their surface area is large compared with their volume; they have a large surface area to volume ratio. Therefore they can obtain substances by diffusion through their relatively large plasma membrane. These substances have to diffuse only short distance so can diffuse at a faster rate and meet the organism’s

On the other hand, the enlargement of gummy bear A submerged in water was due to the diffusion process, in particular, sugar molecules through diffusion process and water molecules through osmosis process. Gummy bear A has a semi-permeable membrane covered the surface where small particles such as water molecules were allowed to pass through it. Since the gummy bear has a low concentration of water molecules and a high concentration of sugar molecules when it was dry, therefore the diffusion process started once it was placed inside the water. The water molecules moved from higher concentration (water in the cup) through the semi-permeable membrane to lower concentration (gummy bear A); while sugar molecules moved from higher concentration (gummy bear A) to lower concentration (water in the cup). In other words, as water molecules entered the gummy bear, the dimension of the bear will increase. At the same time, as sugar molecules exit the bear and enter the water, the size of the gummy bear will decrease. The size of gummy bear A increased must be due to the water molecules entering is much faster than the sugar molecules exiting. Furthermore, since the membrane of the gummy bear was elastic, the size of the gummy bear will continue to increase and eventually disintegrated. The diffusion process continued until equilibrium of molecules were