Lab Report On Finding The Water Potential In Plant

Biology
Experimental report

Title:| Finding the water system potential in plant tissue|
Date:| 30th November, 2010|
Aim:| To rule the water potential of stump spud|

Biological principles of the experiment
Osmosis will materialize if the water potential of the cytol of the cellular telephones is different from that of the result alfresco the cells. There will be no shed light on water movement into or start of the cells if the water potential of the cytoplasm is the same as that of the solution outside the cells. The duration or weight of the cells will not have any convince.
* Design
position potato strips into sucrose solution of various concentrations and find out which concentration will not ca drug abuse change in length or weight of the potato strips.

| Change in weight| Change in length| Reason|
operose solution| Decrease| Decrease| Water leaves the cell by osmosis causing the cell to shrink|
Dilute solution| addition| Increase| Water enters the cell by osmosis causing the cell to expand|
Solution with the same concentration as the cytoplasm| No change| No change| No net movement into or out of the cell|

* Independent changeable
assiduity of the solution for the potato to put in is the independent variable in this experiment.



It can be adjusted by diluting the solution to different concentrations.
* Dependent variable
The change in length or weight of the potato is the dependent variable in this experiment. To neb the change in weight, use a balance to handbill the sign and the concluding weight of the potato strips. By subtracting the initial weight by the final weight to obtain the change in weight; to measure the change in length, use a ruler to measure the initial and the final length of the potato strips, subtract the initial length by the final one to obtain the change in length.
Precautions: Keep the potato strips in covered Petri dish to prevent desiccation in the first place use, and blot dry the potato strips before putting them into the...If you ask to get a full essay, order it on our website: Orderessay



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