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DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!

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  • DHN 311

DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. What are the two classes of enzyme inhibitors? - ANSWER 2. irreversible 2. What are the four types of enzyme inhibition? - ANSWER 2. non-competitive 3. uncompetitive 4. suicid...

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  • December 11, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • DHN 311
  • DHN 311
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EWLindy
DHN 311 Exam Tested Questions
Reviewed And Revised With
Correct Answers
Already Passed!!

1. What are the two classes of enzyme inhibitors? - ANSWER 1. reversible
2. irreversible


2. What are the four types of enzyme inhibition? - ANSWER 1. competitive
2. non-competitive
3. uncompetitive
4. suicide


3. Competitive inhibition occurs when the inhibitor.... - ANSWER .....binds
reversibly to the same site that the substrate would normally bind


4. A competitive inhibitor ____ the Km - ANSWER increases


5. Non-competitive inhibition occurs when the inhibitor and substrate bind at
_____ sites on the enzyme - ANSWER different

,6. Non-competitive inhibition can't be overcome by increasing the concentration
of the substrate SO these inhibitors ____ the Vmax - ANSWER decrease


7. With non-competitive inhibitors, increasing the amount of substrate ______
on the percentage of enzyme that is active - ANSWER has NO EFFECT


8. Noncompetitive inhibitors don't interfere w the binding of the substrate to the
enzyme SO the enzyme shows the ______ - ANSWER same affinity (Km)


9. In uncompetitive inhibition, the inhibitor can only bind??? - ANSWER the
ES complex


10. Uncompetitive inhibition works best when.... - ANSWER both the
substrate and the enzymes concentrations are high


11. Suicide inhibition is.... - ANSWER IRREVERSIBLE


12. Suicide inhibition resembles which other type of inhibition? - ANSWER
competitive


13. Regulatory enzyme: - ANSWER enzymes that have a greater effect on the
rate of overall sequence


14. An increase in substrate concentration prompts an increase in ______ rate
and formation of the product - ANSWER reaction

, 15. In most multi-enzyme systems, the ____ enzyme is the regulatory one -
ANSWER first


16. The more an enzyme is regulated, the more ____ that enzyme is to metabolic
pathways - ANSWER important


17. How do allosteric enzymes function? - ANSWER through reversible, non
covalent binding of regulatory compounds called allosteric modulators


18. What are allosteric enzymes? - ANSWER multi-subunit proteins that
usually contain 2 subunits with different binding sites


19. Catalytic sites also means... - ANSWER active site


20. Allosteric site also means... - ANSWER regulatory site


Homotropic enzyme - ANSWER if the enzyme is the substrate itself


What is a conformational change? - ANSWER a slight change in the folding
of an enzyme


How does one change the activity of an enzyme? - ANSWER changing the
active site

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