Essay about Biology Enzyme Lab

1504 Words Nov 2nd, 2012 7 Pages
Enzyme Lab

Introduction/ Abstract An enzyme is a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction. They are mainly made up of proteins and can tremendously speed up reactions. E. coli ( a bacterium) has about 1,000 different types of enzymes floating around in its cytoplasm at any given time. Enzymes can be used to join and even break up molecules as shown in the diagram below.

(1) A maltose molecule is about to go into an maltase enzyme which are shaped to fit maltose molecules perfectly. (2) The molecule enters the enzymes active site and prepares to be broken down. (3) The maltose molecule's bonds are broken
…show more content…
| There was no reaction. | 0 | | MnO2 | Black bubbles formed producing a popping noise. The test tube got colder. | A reaction occurred. | 2 | B | Liver | Foam formed, Large bubbles formed, test tube was warm, the liver was suspended in the test tube and wrinkled. | A reaction occurred. | 3.5 | | Potato | White foam, small bubbles formed producing a popping noise. | Small reaction | 1.5 | C | Used liver + Fresh liver | Nothing happened, the water got dirty from the decomposing liver. The contents also gave off a metallic scent. | There was no reaction. | 0 | | Used Liver + H2O2 | Large bubbles formed, the test tube got warmer and the liver became suspendded. The test tube also gave off a metallic scent. | There was a large reaction. | 4 | D | Crushed liver | The test tube got warmer. Many bubbles formed, there was a strong metallic odour. The bubbles are polygonal. | There was a rapid reaction. | 4 | | Crushed potato | Foam formed. the sand begun to rise, the water got cloudy, there was a slightly sweet scent and the test tube got warmer. | A mild reaction occurred. | 3 | E | Boiled liver | No reaction, the liver was charred. | There was no reaction. | 0 | | Liver at 37oC | The water got cloudy, the liver was floating, and

More about Essay about Biology Enzyme Lab

Open Document