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

The relationship between turgidity of potato cells and the concentration of the surrounding medium

Extracts from this document...

Introduction

The relationship between turgidity of potato cells and the concentration of the surrounding medium Aim: To find the relationship between turgidity of potato cells and the concentration of the surrounding medium. Prediction: I predict that as the concentration of sucrose increases the mass of the potato chip will decrease. When the concentration of sucrose is equal to the volume of water, I predict that the mass of the potato chip would stay around the same. As the concentration of sucrose decreases the mass of the potato chip would increase. Hypothesis: I predict the above because the process that occurs in this experiment is osmosis. Osmosis is the transfer of water from a high concentration to a low concentration. Therefore when there is low concentration of sucrose in the medium, the water molecules inside the potato chip goes out of the chip into the medium to equalize the solution. ...read more.

Middle

Each measurement will be tested twice and the weight of the potato chip will be averaged then compared. Below is a table showing how the concentration of sucrose in the medium is changed. Concentration of medium % Volume of H2O Concentration of Sucrose 0 100 0 25 75 25 50 50 50 75 25 75 100 0 100 Apparatus: 1. 1 potato 2. Corer 3. 5 large beakers 4. Knife 5. Sucrose solution (amount varies for each beaker) 6. Water (amount varies for each beaker) Method: 1. Weigh each potato chip and put measurements in a table. 2. Set up experiment as shown in diagram. 3. Fill in medium in each beaker with the correct amount of concentration. 4. Place 3 potato chips in each beaker. ...read more.

Conclusion

Increase (+) / Decrease (-) in Mass 0 +0.11 25 +0.02 50 +0.02 75 -0.10 100 -0.13 Graph of results is shown in separate sheet of graph paper. Conclusion: As we can see from the results, when the concentration of sucrose increases the mass of the potato chip will decrease and vice versa. Therefore the prediction and hypothesis was correct in terms of the results. Evaluation: The results above are reliable because each concentration has been tested 3 times with the same potato and the results have then bee averaged out. The differences were calculated into 2 decimal places. If we were to repeat this experiment and had given more time, I would not put 3 potato chips in the same beaker but would have 3 beakers with the same medium in and each filled in with a potato chip. Therefore each potato chip would not have to compete over the same medium. ...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. The Relationship between turgidity of potato cells and the concentration of surrounding medium

    These measurements of the concentration of sucrose will be distributed into 0%, 25%, 50%, 75% and 100%.

  2. To find the relationship between turgidity of potato cells and the concentration of the ...

    by the surrounding medium, but there were many factors that prevented me from obtaining the best, most reliable results. These are listed below: * the potato chips were not cut to the same lengths * the amount of solution in each test tube was not the same * the flexibility

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