1. What is the function of enzymes in a living system? 2. Different enzymes work
ID: 217938 • Letter: 1
Question
1. What is the function of enzymes in a living system?
2. Different enzymes work better under different conditions. Where in a human body might it be beneficial to have enzymes that work well in very acidic environments?
3. In Part 1C, what might happen if the potato was boiled before the hydrogen peroxide was added to it?
4. Many enzymes end with "ase". Create your own enzyme: name and explain what this enzyme does. Draw the enzyme and substrate in the space provided below along with the enzyme-substrate complex.
5. Recent advances have allowed humans to mass-produce certain enzymes. Research one such enzyme and explain how this enzyme has been used to benefit society.
6. Amylase is an enzyme that aids in the digestion of starches and has an ideal temperature range of 35-40°C (approximately the human body temperature). Predict what would happen to the rate of amylase activity at 25°C.
7. In Part 1A of the experiment you observed the formation of gas bubbles in the reaction mixture. What gas do you think was forming? What test do you think you could employ to see if you were correct?
8. When you added the catalase to hydrogen peroxide, you observed a strong reaction in the mixture. Do you think this reaction will continue indefinitely? Why or why not?
9. You may have observed the reaction of naturally-occurring catalase in tissue from either liver or potato. Design an experiment to determine if the amount of catalase varies from tissue to tissue (e.g. 200g of liver compared to 200g of potato).
10. Of the thousands of enzymes known, there is a family of enzymes called proteases that catalyze a reaction breaking down proteins. What do you think would happen if you added protease to your sample of catalase before proceeding with your experiment?
Explanation / Answer
1.
Enzymes are proteins which are present in a biological cell.
They are the macramolecules.
They catalyze several reactions in the cell.
They decrease the activation energy for a reaction so that the reaction rate
can be accelerated.
Some enzymes regulate energy production.
Some regulate synthesis of other proteins.
Some pack the DNA
Some regulate DNA synthesis.
Some regulate cell growth and division.
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