https://padlet.com/alia9351/vlr53yfsoxa By Alia Gouge en-us 2018-03-02 14:27:51 UTC 2018-03-09 19:32:44 UTC hello@padlet.com alia9351 https://padlet.com/alia9351/vlr53yfsoxa/wish/237610242 Your liver VS. Poison ]]> 2018-03-02 20:52:32 UTC https://padlet.com/alia9351/vlr53yfsoxa/wish/237610242 alia9351 https://padlet.com/alia9351/vlr53yfsoxa/wish/237610721 Every cell in your body produces peroxide when it goes through a chemical reaction. Peroxide is poisonous, so the body has created a way to counteract that. Catalase are an enzyme made by every cell in your body. The Catalase react with peroxide breaking it down and creating water and oxygen. ]]> 2018-03-02 20:54:06 UTC https://padlet.com/alia9351/vlr53yfsoxa/wish/237610721 alia9351 https://padlet.com/alia9351/vlr53yfsoxa/wish/237611177
5 test tubes
Stand for test tubes
Raw liver
Peroxide 
Water
Droppers
Matches
Wooden splints
Tweezers
A pot
Access to stove or heat plate
 

]]> 2018-03-02 20:55:36 UTC https://padlet.com/alia9351/vlr53yfsoxa/wish/237611177 alia9351 https://padlet.com/alia9351/vlr53yfsoxa/wish/237611376 A piece of liver in the presence of peroxide will create oxygen and water.
 

]]> 2018-03-02 20:56:20 UTC https://padlet.com/alia9351/vlr53yfsoxa/wish/237611376 alia9351 https://padlet.com/alia9351/vlr53yfsoxa/wish/237612774
1.Fill the first test tube with approximately two centimeters of water add in a piece of the raw liver. This is your control.
2. Fill the second test tube with approximately two centimeters of peroxide. Add in a piece of raw liver.
3. Add two centimeters of peroxide to the third test tube. Do not add any liver. Light a match and set one of the wooden splints on fire. Let it burn for a few seconds until it is red hot and then blow out the flame. Place the splint in the peroxide.
4. In the fourth test tube add two centimeters of peroxide and a piece of the raw liver. Wait for the reaction to occur. Light a match and set one of the wooden splints on fire. Let it burn for a few seconds until it is red hot and then blow out the flame. Touch the red-hot splint to the reaction.
5. Place some of the liver in a pot of water and bring to a boil. Add approximately one centimeter of the water and the boiled piece of liver to the fifth test tube. Add approximately one centimeter of peroxide to the same test tube. 

]]> 2018-03-02 21:01:16 UTC https://padlet.com/alia9351/vlr53yfsoxa/wish/237612774 alia9351 https://padlet.com/alia9351/vlr53yfsoxa/wish/237613126
1.The water and liver in the first test tube have no reaction on each other.
2. The second tube contain the liver and peroxide reacts creating bubbles, but we cannot prove that it is creating water and oxygen.
3. In the third tube we are testing if the liver and peroxide are creating oxygen. Peroxide is not flammable so when the splint was put in the peroxide it only extinguished the splint.
4. Tube Four-Pure oxygen in the presence of a spark creates a fire. So, touching the hot stick to the reaction produced when peroxide and the liver interact proves that they do create water and oxygen.
5. Tube Five-Boiling the liver demonstrates what happens to enzymes when they are heated beyond their optimal temperature. Boiling the liver caused the enzymes to denature. The denatured enzymes in the boiled liver did not react to the peroxide.

]]> 2018-03-02 21:02:39 UTC https://padlet.com/alia9351/vlr53yfsoxa/wish/237613126 alia9351 https://padlet.com/alia9351/vlr53yfsoxa/wish/237616445
The results of this experiment prove that the catalase enzymes in the liver break down the peroxide and replace it with water and oxygen. Enzymes are an organic catalyst that speeds up the rate of a reaction. Water was used as the control to demonstrate that the liver does not react to water. When peroxide and the liver were added to test tube two the enzymes in the liver reacted with the peroxide, breaking it down and turning it into water and oxygen. In this experiment the peroxide is the substrate that reacts with the enzymes in the liver. Oxygen is flammable so by using a red-hot stick on the reaction that occurred in test tube two we can determine whether or not the reaction is creating oxygen and water. As the temperature of an enzyme increases the activity of that enzyme decreases, this is called denaturing.

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