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

How does temperature affect the rate at which amylase breaks down starch?

Extracts from this document...

Introduction

How does temperature affect the rate at which amylase breaks down starch? Planning My plan is to find out what temperature is most ideal for amylase to break down starch at, and how fast it can break down starch at this temperature. I predict that the colder the temperature, the slower the reaction between the starch and amylase will be. The hotter the temperature the quicker the reaction will be. Enzymes are the catalysts of chemical reactions taking place in living organisms. Each Enzyme is a protein that catalysts a particular reaction. Enzymes break down bigger molecules into smaller ones. Amylase is an enzyme found in saliva that helps to break down starch. ...read more.

Middle

At first I tried 30ml of amylase with 10ml of starch but I found that the solution went clear straight away. I also found it to be more accurate to use just one drop of iodine rather than 2 or 3 because then it is easier to distinguish between starch that is nearly digested and starch that is completely digested. Apparatus that will be used: Amylase solution Starch solution Beakers Pipette Stopwatch Test tube rack Test tube Syringe Spotting tile Water heater Thermometer Method 1. I will take 1 100ml beaker of starch, and 1 of amylase. 2. Put 20ml of starch in a test tube and 10ml of amylase in another test tube. ...read more.

Conclusion

7. I will then, in the 15 seconds before I have to take the next sample, note the colour of the spot of starch and amylase solution in a table. 8. Once the experiment is complete I will make one table to show the colours of the starch at the different times, and then another table to show how long it took for the starch to be fully digested and turned into maltose by the amylase. 9. Having made the tables I will be able to put the data into graphs. I will not have to take any major safety precautions but I will be careful handling the hot water as I could scald myself if it is spilled. Aisling Lavelle Remove (K) ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Molecules & 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 AS and A Level Molecules & Cells essays

  1. How effectively the enzyme amylase breaks down starch into glucose

    throughout all our tests to ensure that each other's eyesight and different perception of colours had no affect on the results of our experiments. The equipment was also kept the same throughout. I then decided to conduct the experiment as follows: Two test tubes would be taken, with equal amounts of starch and amylase solution.

  2. 'Investigating how temperature affects the rate action of the amylase enzyme on starch.'

    I must think of ways to improve my technique and apparatus to obtain precise and reliable results. I have begun to prepare for my official experiment, and my initial idea in changing the apparatus is replacing the water beaker method with using a water bath.

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