Potato Osmosis Lab
Lab Report
Purpose: Osmosis and diffusion through potato core in different concentration (viable) : The concentration of solution in a solution will affect the movement of water across potato cell membrane
Material: Potato core Sucrose solution (0.2,0.4,0.6,0.8,1.0) Electronic Balane Test tube and rack Scalpel Plastic Weighing tray Cork Borers
Method: Day 1 use you cork borers to bore 6 vertical hole on your potato. remove the potato cylinders from cork borers. take the potato cylinders to mass using electronic balance.each one had to be the same mass. Record data put the potato cylinder into test tube. Pour each solution in it and have to cover the potato cylinder. Put plastic …show more content…
Make them dry by using tissue. Measure the mass and record the mass of each one
Record of potato cylinder
Solution | Initial mass (g) | Final mass(g) | Change in mass | Percent changes(%) | 100%water | 0.28 | 0.27 | -0.01 | -3.57% | 0.2 of sucrose | 0.28 | 0.3 | 0.02 | 7.14% | 0.4 of sucrose | 0.28 | 0.25 | -0.03 | -10.71% | 0.6 of sucrose | 0.28 | 0.29 | 0.01 | 3.57 | 0.8 of sucrose | 0.28 | 0.2 | -0.08 | -28.57% | 1.0 of sucrose | 0.28 | 0.26 | -0.02 | -7.14% |
Percent changes = Final mass – Initial mass/Initial *100
Conclusion:
Our result show that is so strange because the final mass(g) of each solution going increase and some decrease.It was hard to conclude that which solution is isotonic,hypertonic and hypotonic.however, we notice that 100% water final mass is quite the same as initial mass becasue at the first time we mass the weight are the same and for the second time the weight were decrease.Also, I prediction that final mass of 0.2-1.0 might decreasing while the concentration was higher. For the graph, expect for the point of potato cylinder in 0.8 concentration of sucrose which give us high percentage. The graph shaped should decreasing but or graph is not which seem like mistake
Purpose: Osmosis and diffusion through potato core in different concentration (viable) : The concentration of solution in a solution will affect the movement of water across potato cell membrane
Material: Potato core Sucrose solution (0.2,0.4,0.6,0.8,1.0) Electronic Balane Test tube and rack Scalpel Plastic Weighing tray Cork Borers
Method: Day 1 use you cork borers to bore 6 vertical hole on your potato. remove the potato cylinders from cork borers. take the potato cylinders to mass using electronic balance.each one had to be the same mass. Record data put the potato cylinder into test tube. Pour each solution in it and have to cover the potato cylinder. Put plastic …show more content…
Make them dry by using tissue. Measure the mass and record the mass of each one
Record of potato cylinder
Solution | Initial mass (g) | Final mass(g) | Change in mass | Percent changes(%) | 100%water | 0.28 | 0.27 | -0.01 | -3.57% | 0.2 of sucrose | 0.28 | 0.3 | 0.02 | 7.14% | 0.4 of sucrose | 0.28 | 0.25 | -0.03 | -10.71% | 0.6 of sucrose | 0.28 | 0.29 | 0.01 | 3.57 | 0.8 of sucrose | 0.28 | 0.2 | -0.08 | -28.57% | 1.0 of sucrose | 0.28 | 0.26 | -0.02 | -7.14% |
Percent changes = Final mass – Initial mass/Initial *100
Conclusion:
Our result show that is so strange because the final mass(g) of each solution going increase and some decrease.It was hard to conclude that which solution is isotonic,hypertonic and hypotonic.however, we notice that 100% water final mass is quite the same as initial mass becasue at the first time we mass the weight are the same and for the second time the weight were decrease.Also, I prediction that final mass of 0.2-1.0 might decreasing while the concentration was higher. For the graph, expect for the point of potato cylinder in 0.8 concentration of sucrose which give us high percentage. The graph shaped should decreasing but or graph is not which seem like mistake