• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3

# 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

# 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

1. ## Find the Relationship between turgidity of potato cells and the concentration of the surrounding ...

Method - There are 2 parts to the method, which are: The Mass of the potato chip before and after and, The turgidity of the potato chip before and after. Here is the overall method for the whole experiment: 1.

2. ## Find out the best conditions to keep cut chips in over night so that ...

This is because 1M is a very concentrated solution and that a cells cytoplasm is a very weak solution of solutes, therefore the solution that is approximately the concentration of the potato will have to be near 0M so it won't be too strong.

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