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

Investigating enzymes

Extracts from this document...

Introduction

Biology Report The effect that bromeline has on gelatines ability to coagulate Yasmin Kazemi Ahari Rasmussen 2.U Journal Investigating enzymes Aim: The aim of the experiment was to investigate the effect of the enzyme bromeline on gelatins ability to form a mass, and how temperature also can have an affect on this particular process. Hypothesis: It is expected that when the bromeline enzyme isn't present, that the gelatin will remain staying as gel, when dissolved in water. The untreated raw juice, would be the only result where the process would make it break down the proteins in the gelatin. ...read more.

Middle

2. When all the gelatin was dissolved, the heat was turned off and the solution got time to cool down, approximately 5-10 minutes. 3. While waiting for the solution to get cooled down, the pineapple juice is made by cutting a fresh pineapple and blending the pineapple to result in having fresh pineapple juice. 4. When 5 ml of fresh juice was made, 2,5 ml was removed from the mix and boiled in a test tube for a few seconds. 5. ...read more.

Conclusion

The fresh pineapple juice contains the enzyme bromeline, this enzyme breaks down the protein in the gelatin, which doesn't allow it to form and makes it liquid instead of solid. The canned pineapple doesn't contain this enzyme, because of the process it goes through. The pineapple juice is heated up, which destroys the Bromeline enzymes, so it won't affect the gelatin. Conclusion: When doing the investigation of the effect of the enzyme Bromeline has on gelatins ability to solidify, it was observed that only the untreated raw pineapple juice was able to break down the proteins in the gelatin. When heated, the Bromeline enzymes didn't, have a further effect on the gelatin. 1 1 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology 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
  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work