Enzyme Lab BY: Fasssil Mekonnen
Introduction
Enzymes are biological molecules (proteins) that act as a catalyst with three characteristics. First, the basic function of an enzyme is to increase the rate of reactions. Second, a majority of enzymes act only with one reactant called a substrate to produce a product. Third enzymes are regulated from a state of low to high activity and vice versa. Enzymes are specific catalysts and usally only work on one job.
materials
- distilled water
- Oak grass 2.8 g
- hydrogen peroxide
- test tubes
- ice
- test tube holders
- beakers
- scale
- water heater
procedure
- collected Oak grass
- mashed up the Oak grass
- got test tubes and test tube holder
- put liquid oak grass in the test tubes
- tested with room temperature
- than tested with cold temperature 0 degrees celsius
- tested with hot temperature 50 degrees celsius
- recorded data
- I had fun
purpose
The purpose of our experiment was to see if changing the temperature would change the rate of reaction.
Conclusion
How would changing the temperature affect the rate of reaction? My hypothesis is that the oak grass would react faster in cold temperatures. First Syra and I collected some freshly picked oak grass. Then we mashed it up into a liquid solution. Then we placed the liquid solutions in three test tubes about 2 mm in each. The first solution we tested was at room temperature (20°c). It had the fastest reaction of the three we tested. Then we tested at cold temperatures (0°c). The reaction was much slower compared to the room temperature. After that we tested at at a hot temperature (50°c). The reaction was really similar to the room temperature test. It was just a tiny bit slower. In conclusion my hypothesis was wrong,and changing the temperature does change the rate of reaction.
0 degrees celsius
|
20 degrees celsius
|
50 degrees celsius
| |
0 sec
|
0 mm
|
0 mm
|
0 mm
|
10 sec
|
2 mm
|
30 mm
|
19 mm
|
20 sec
|
4 mm
|
35 mm
|
25 mm
|
30 sec
|
7 mm
|
40 mm
|
33 mm
|
40 sec
|
10 mm
|
45 mm
|
40 mm
|
50 sec
|
12 mm
|
49 mm
|
42 mm
|
60 sec
|
14 mm
|
50 mm
|
45 mm
|
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