Question

reactants and products of reaction occuring in liver​

Answer 1

Answer:

The liver uses specialized enzymes to help it break down toxic substances and make them safer for the body to process. But an enzyme, just like the chemical reactions it modifies, needs certain conditions to do its work. So, some environments can make a liver enzyme effective, whereas others can prevent it from working at all.

Explanation:

Materials:-

• Raw liver (fresh or frozen, thawed; one quarter pound)

• Knife

• Cutting board

• Blender

• Water

• Refrigerator

• Medicine dropper

• Large plate

• Hydrogen peroxide (new or recently purchased bottle works best)

• Measuring teaspoon

• Two bowls

• Vinegar

• Baking soda

• Microwave-safe bowl (with a cover)

• Microwave oven

Procedure:-

• Put one drop of the blended liver on the large plate. To the blended liver drop, add one drop of hydrogen peroxide. You should see a lot of bubbles! What do you think the bubbles are made of? This shows that the liver enzyme catalase is working to start the chemical reaction that breaks down the hydrogen peroxide that would be harmful to the body into less dangerous compounds.

• To test the effect of an acid on the liver enzyme, put one teaspoon of the blended liver in a bowl and mix it well with one teaspoon vinegar. What is the color and consistency of this mixture? Put one drop of the mixture on a clean part of the large plate and add one drop of hydrogen peroxide to it. Compared with the untreated blended liver, did more, less or about the same amount of bubbles form? Did they form more slowly, more quickly or at about the same rate?

• To test the effect of a base, put one teaspoon of the blended liver in a bowl and mix it with one teaspoon baking soda. What is the color and consistency of this mixture? Put one drop of the mixture on a clean part of the large plate and add one drop of hydrogen peroxide to it. Did more, less or about the same amount of bubbles form? Did they form more slowly, more quickly or at about the same rate?

• To test the effect of heat, put one teaspoon of the blended liver into a microwave-safe bowl. Cover the bowl and microwave it on high for 20 seconds.

Observations and results:-

When exposed to hydrogen peroxide, did the blended liver bubble less when mixed with either the vinegar or baking soda compared with when it was untreated? Did it bubble even less after it was microwaved?

An enzyme needs certain conditions to work, and the ideal environment can be a hint as to where the enzyme normally works in the body. And because different body tissues have distinct environments—acidic or warm—each enzyme is tuned to work best under specific conditions.

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