ENZYMES

. A stopwatch

Variables that might affect my results: that might affect my results:

. Unequal amounts of both solutions

. Wrong temperatures

. If my timing is not accurate

. Control?

Fair Test: I will make this a fair test by...

. Adding an equal amount of Iodine and amylase

. Having the right temperature at different times

. Making sure the temperature stays that way

Prediction:

My prediction is that I will able to see how enzymes can be affected by temperature, as when I start adding the drops, the colour will change from black to a lighter colour. However, this only will occur at different speed and heat temperature. I will be able to test it by recording its results at different temperatures. The experiment will work best at 35oC as its closest to body temp.

                                     ANALYSING

The results show me that:

Enzymes are affected by temperature, which by adding the solution drops, the colour changed from black to a lighter colour. It occurred at different speed and heat temperatures. The results show the experiment worked as its best 35oC.This shows that enzymes are affected by temperature.

So my Prediction was:

"That I will be able to see how enzymes can be affected by temperature, as when I start adding the drops, the colour will change from black to a lighter colour. However, this only will occur at different speed and heat temperature. I will be able to test it by recording at different temperatures.

The experiment will work best at 35 C as it’s closest to body temperature"

I was right because I thought the drops were going to become lighter as the drops go by on the spotting tiles. Also, the prediction of the experiment working best at 35 C was right.

The pattern I can see from the graph/results:

The patterns shows that firstly there was an increase but a huge decrease in the middle, it shows that when its at low temperature, the drops take quicker to turn from black to another colour, however when the temperature increases the average also increases.

This is because:

All enzymes are proteins, at high temperatures the proteins break down. Starch turns Iodine Solution blue-black. When starch is broken down it will not turn iodine blue-black. So the higher the temperature the faster starch breaks down. However, the experiment works always best at 35oC as its closest to body temperature.

                   

                       RESULTS

A table to show the results of when and how Enzymes are affected by temperature.

EVALUATION

I think the experiment worked well because:

 The experiment and results showed up how I expected them to because the higher the temperature, the lower the time and 35 C would be the best temperature for breaking food down.

I know the results are accurate because:

 This was a fair test. I used a higher temperature each time and made sure my timing was and measurement was accurate.

I could improve the experiment by:

 Making it more of a fair test, by making sure that the time is proper accurate and there’s equal amounts of both solutions, and lastly that the timing is more accurate.