Effect Of Sucrose Concentration On Osmosis

Osmosis

What effect does the increase of sucrose concentration have on the mass of a potato chip?

Examination Session: May 2016

Biology Internal Assessment

Candidate Name: Carolina Trujillo

Candidate Number: 003101-0062

Background information:

Osmosis is very importance in biological processes where the solvent is water. The transport of water and other molecules across biological membranes is essential to many processes in living organisms (hyperphysics.phy-astr.gsu.edu) Osmosis is the movement of water molecules through a semipermeable membrane. Osmosis plays a vital role in living organisms. For example in plant cells they use osmosis in order to change the shape of their cells. A wall is used in order to give

The hypothesis was that the more concentrated sucrose is added to a potato chip, the potato chip will decrease in mas. Increasing the concentration sucrose in a potato chip will result in the potato chip to lose mass. This can be seen in the graph where i downward slope is occurring. This is showing a negative correlation in the data. The potato chip was the most mass change was the potato chip that was submerged in the 0.80 concentration sucrose. This potato chip lost 0.5 grams of mass. This is evidence that the more concentration the more water will go inside the potato chip. In the concentrate solution 0.20 and 0.40 there was no percentage mass change and because of this it can be said that these two concentrations were of the same movement in molecules. The definition of Osmosis is the movement of water molecules through a semipermeable membrane. If the solute concentration was the same on both sides of the membrane, there will be no net movement, resulting in no mass change at all. 1.00 concentration was the highest in results of mass change ending at -31.8%. This means that the potato chips lost 31.8% of its mass. The beaker with no concentration sucrose on average gained 11.8% of their mass. This gain in mass is called a hypotonic solution in which water quickly went inside the potato cell. In the concentration sucrose 0.2 and 0.4 there was an isotonic solution. This is because 2.35% mass was gained in