Diffusion Lab Report
THE EFFECT OF THE WATER CONCENTRATION GRADIENT ON THE RATE OF OSMOSIS
Investigation Folio: Summative
Stage 1 Biology: SEMESTER 1 2014
MARCIA SHAW - 151003X INTRODUCTION
Diffusion: is when something spreads more widely from a higher concentration gradient to a lower concentration gradient. Diffusion is the process from which molecules, atoms or ions mingle together and move from an area of high concentration to an area of low concentration as a result to their kinetic energy. for example if you were to put a drop of purple food coloring into a glass of water, the coloring of the dye will soon be mixed with the water making the entire glass of clear water purple. This is shown in the first illustration of figure 1.
Osmosis: is a process from which molecules of a solution, pass through a …show more content…
Strengths and Weaknesses A weakness for this practical was that so many random errors could have occurred.
A strength is that the experiment was quick and easy.
Ways to improve the experiment
A in which the experiment could be improved is that the dialysis tubing could have came already cut into the 25cm.
Conclusion
In conclusion to this, the results support the hypothesis. Which means as the percentage of sucrose increase, the weight of the dialysis bag had also increased.
REFERENCES
Helmenstine, A M. (2014). Examples of diffusion. Available: chemistry.about.com/od/solutionsmixtures/fl/examples-of-diffusion.htm. Last accessed 18th Feb 2014. http://chemistry.about.com/od/solutionsmixtures/fl/Examples-of-Diffusion.htm Nave, R. (2013). Diffusion and Osmosis. Available: hyperphysics.phy-astr.gsu.edu/hbase/kinetic/diffus.html. Last accessed 18th Feb 2014. http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/diffus.html Unknown. (2014). They Like To Move It. Available: http://idonthaveagoodblogaddress.wordpress.com/2011/07/28/they-like-to-move-it/. Last accessed 23rd Feb
Investigation Folio: Summative
Stage 1 Biology: SEMESTER 1 2014
MARCIA SHAW - 151003X INTRODUCTION
Diffusion: is when something spreads more widely from a higher concentration gradient to a lower concentration gradient. Diffusion is the process from which molecules, atoms or ions mingle together and move from an area of high concentration to an area of low concentration as a result to their kinetic energy. for example if you were to put a drop of purple food coloring into a glass of water, the coloring of the dye will soon be mixed with the water making the entire glass of clear water purple. This is shown in the first illustration of figure 1.
Osmosis: is a process from which molecules of a solution, pass through a …show more content…
Strengths and Weaknesses A weakness for this practical was that so many random errors could have occurred.
A strength is that the experiment was quick and easy.
Ways to improve the experiment
A in which the experiment could be improved is that the dialysis tubing could have came already cut into the 25cm.
Conclusion
In conclusion to this, the results support the hypothesis. Which means as the percentage of sucrose increase, the weight of the dialysis bag had also increased.
REFERENCES
Helmenstine, A M. (2014). Examples of diffusion. Available: chemistry.about.com/od/solutionsmixtures/fl/examples-of-diffusion.htm. Last accessed 18th Feb 2014. http://chemistry.about.com/od/solutionsmixtures/fl/Examples-of-Diffusion.htm Nave, R. (2013). Diffusion and Osmosis. Available: hyperphysics.phy-astr.gsu.edu/hbase/kinetic/diffus.html. Last accessed 18th Feb 2014. http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/diffus.html Unknown. (2014). They Like To Move It. Available: http://idonthaveagoodblogaddress.wordpress.com/2011/07/28/they-like-to-move-it/. Last accessed 23rd Feb