• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Investigating the water potential of potato cells.

Extracts from this document...


Investigating the water potential of potato cells Introduction I am going to be doing an experiment to try and measure the water potential of potato cells. The net direction of water movement in a cell depends on whether the water potential of the cell solution is more negative or less negative than the water potential of the external solution. Aim To measure the water potential of potato cells in different concentrations of sucrose solution. Equipment Reasons for choosing equipment 1. 18 test tubes are used to place in the different concentrations of solution with the potato 2. Pipette is used to measure out solutions 3. Potato is used for finding out the potential in its cells 4. ...read more.


. 2. Using labels, label all of your test tubes and beakers. 3. Using the cork borer, cut up the potato, for safety put a tile under the potato, so you do not cut your hand as the cork borer goes through the potato. 4. Weigh and note the length of 7 potato samples, place in 7 of the labelled test tubes. 5. Repeat the previous steps, from 3 onwards, do this two more times so that you can make sure that the accurate results are acquired. 6. Leave the test tubes in the test tube rack for 24 hours. 7. When the time is up you can check the position of the potato in the test tubes. ...read more.


Handling the potato may have also caused a affect on the water potential results. Human error is also a large problem that could have occurred. If I had a chance to do my experiment again I would use accurate measuring tools and cutting tools. To stop any evaporation that may occur I would not only cover the test tubes I would cover them in black paper so they couldn't not evaporate. For drying the potato the best thing I could do is cover them in a tissue and let them dry naturally, this would take more time but I think that the results would be more accurate, I would also use gloves to handle all of my potato samples this way I would not disturb the water potential results. Raj Brahmbhatt a/s level coursework biology ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Life Processes & Cells section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Life Processes & Cells essays

  1. Investigating the cellular water potential of potato cells.

    = Solute potential (?s) + Pressure potential (?p) However, when the pressure potential within a plant cell equals 0, the equation can be altered as pressure potential is no longer counted for; Water potential (?) = Solute potential (?s) Method This experiment works as the water within the potato samples

  2. An Investigation to determine the Water potential of Potato cells.

    0.25cobb bbr sebbbbw orbb bbk inbb fobb bb. -613coda dar sedadaw orda dak inda foda da. 1.08 XzpEf Visit coursework df in df fo df for df more coursework df Do df not df redistribute XzpEf 3.24cobd bdr sebdbdw orbd bdk inbd fobd bd; 3.28codc dcr sedcdcw ordc dck indc fodc dc: 0.04 Weber refuted shayon's realism theory.

  1. Determination of the water potential of root/tuber cells by the weighing method.

    From the table below, find the water potential of a sucrose solution of that molarity. That is the water potential of your sample of potato cells. Table: relationship between molarity and solute potential of sucrose solutions Molarity (mol dm-3) Solute potential (Kpa)

  2. Investigating the Water Potential of Potato Cells

    I am pleased at the way my experiment went and despite the anomalous result for 0.8M sucrose, I think that my procedure is a good one which I will use in the actual experiment. My range is fairly good also.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work