Enzyme Lab Essay example

840 WordsApr 30, 20144 Pages
Lab Report: Enzyme Lab Your Name: Samantha Butcher Purpose of this Lab What is the goal of this lab? What question is it trying to answer, or what problem is it trying to explain? It is going to explain how a liver's enzymes break down substances that could be harmful.| Hypothesis After reading the lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. Give your reasons and outline any assumptions that lead you to this hypothesis. I'm guessing that the liver will turn the peroxide into something else, or make it change. Experimental Design List the materials used in this lab, and the procedure you followed. Materials: Commercially available…show more content…
Data Record the data you collected in the lab Observations: 3.What happened in test tubes C and E? They became fizzy with water/oxygen foam. What was the purpose of the water in tube C? It's the control. 4.Test for the presence of hydrogen gas and oxygen gas. Which gas, oxygen or hydrogen, was produced by the reaction? The hydrogen made the stick pop and the oxygen made the glowing end flare up. 5. Since enzymes are not supposed to be used up, extract the piece of liver from the glass and add it to a second glass to which you then add more hydrogen peroxide. Notebook activity: What happened in the second tube? It fizzed a little bit. 6. Pour the liquid from the first glass into a third glass containing fresh hydrogen peroxide. Notebook activity: Was there a reaction? No. There was no liver in the third tube, which meant that there were no enzymes, which means that nothing was coverted to hydrogen and oxygen. How might you test for the presence of the enzyme in some common materials such as apples, potatoes, and onions? Design and record ONE test you have performed in the Enzyme Oberservation Form to detect the presence of catalase in ONE food item. -You could take a peeled apple, and put it into a bowl.Pour peroxide over the apple, and if there

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