Lab Report by Lily Patterson https://padlet.com/lilypatterson/82msp22t8vu1 Made by Science en-us 2018-02-20 18:37:16 UTC 2018-02-21 15:41:53 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Templeball.png Title: Liver and Enzyme Lab lilypatterson https://padlet.com/lilypatterson/82msp22t8vu1/wish/233798804 Introduction: 
Peroxide is a chemical reaction produced by all parts of your body. However, peroxide is harmful and needs to be broken down. Catalysts break down peroxide into water and oxygen. The question this lab is based on is will the liver be able to break down peroxide. The liver contains enzymes, which contains catalysts.

Hypothesis: 
I believe that the liver will be able to break down the peroxide into water and oxygen.

Materials:
4 test tubes
Water
Peroxide
Pieces of LIver

Procedure:
  1. Take test tube 1 and fill it with water to the 2 cm mark
  2. Add a small piece of liver to test tube 1
  3. Look for a reaction and record your findings
  4. Take test tube 2 and fill it with peroxide to the 2 cm mark
  5. Add a small piece of liver to test tube 2
  6. Look for a reaction and record your findings
  7. Take test tube 3 and fill it with peroxide to the 2 cm mark
  8. Take a match and light a wooden splint on fire
  9. Let the splint burn for a few seconds before putting it in the peroxide.
  10. Look for a reaction and record your findings
  11. Take test tube 4 and fill it with peroxide to the 2 cm mark
  12. Add a small piece of liver to test tube 4
  13. Take a match and light a wooden splint on fire
  14. Put the wooden splint into the liver and peroxide mix
  15. Look for a reaction and record your findings
  16. Take tes tube 5 and fill it with water to the 2 cm mark
  17. Add a small piece of boiled liver to the water
  18. Add peroxide to the mix of boiled liver and water
  19. Look for a reaction and record your findings

Data:
When the piece of liver was in the water, there was no reaction.
When the piece of liver was in the peroxide, there was a reaction, bubbles formed and went to the top. 
When the wooden splint was in the peroxide, there was no reaction.
When the wooden splint and piece of liver was in the peroxide, there was a reaction, bubbles formed and was flammable. This means that the reaction contains water and oxygen.
When the boiled liver, water, and peroxide was all mixed together, there was no reaction.

Discussion Questions:
  1. Enzymes are organic catalysts. Catalysts speed up chemical reactions
  2. When the piece of liver was mixed with peroxide in test tube 2, there was a gas produced. The gas was oxygen. A liquid was left behind was water. 
  3. The wooden splint in test tube 4 both went out and light up. It went out because part of the mixture was water. However, it was light back up because oxygen allows flame to grow. 
  4. If it is too hot, the enzyme will change shape and will not work in the way it is meant too.

Conclusion:
In conclusion, my hypothesis was correct. The liver causes the peroxide to break down into water and oxygen.


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