Biology Enzymes Online Mcqs Test

Start your preparation for Biology Enzymes Online Mcqs Test. This online test contains important MCQs from past papers. Attempting this test will help you prepare for Annual Exams and Entry Tests. Read the questions carefully and select the correct option below to see your result.

Important Biology Enzymes Question and Answer

Total Questions: 50
Time Allowed: 25 Minutes
Total Marks: 50
How to Attempt Test: Please choose the right Option in MCQ-type question.
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Biology Enzymes Practice Test Online With Explanation

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1. Which of the following best defines an enzyme?

2. Which of the following increases the rate of an enzyme-catalyzed reaction?

3. Which term describes an enzyme with its cofactor attached?

4. Which of the following enzymes functions best in the small intestine?

5. What is the nature of enzyme inhibition in poisoning?

6. Which term is used for substances that increase enzyme activity?

7. Which of the following does not affect enzyme activity?

8. The substance acted upon by an enzyme is called:

9. Which of the following is true about enzymes?

10. What is the result when an enzyme binds to a substrate?

11. How does substrate concentration affect enzyme action?

12. Which term best describes enzymes?

13. Which of the following best defines enzyme inhibition?

14. What is the region on the enzyme where the substrate binds called?

15. What is the role of cofactors?

16. Which of the following statements is correct?

17. Which of the following can act as a cofactor?

18. Which enzyme is used in detergents to remove protein stains?

19. Which model explains the enzyme-substrate interaction?

20. Why are enzymes reusable?

21. What is the role of temperature in enzyme activity?

22. Enzyme activity is maximum at:

23. The enzyme that breaks down urea into ammonia and carbon dioxide is:

24. What is the effect of extreme pH on enzyme structure?

25. What is meant by enzyme specificity?


 

How to Score High in Biology Enzymes Online Mcqs Test?

Mastering scientific subjects requires conceptual clarity.

Key Preparation Tips:

  • Concepts First: Ensure you understand the underlying theories before attempting the MCQs.
  • Time Management: Attempt this online quiz multiple times to improve your speed.

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65 Comments

  1. q k jab mene page refresh kia to same mcqs arhe te but agey peche te to kia ye important he k nai ????plzzz help me i m so confused

  2. What d hack I have thorally read d chap but still don’t know many answrs they r out of book I guess

  3. what iz the criteria of aggregation ?? nd iz MCAT necessary ?? if yes then what is the % weightage??

  4. I have fild my form for mbbs from joinpakarmy.gov.pk I selected option of mbbs from all medical colleges so it after mbbs I will be captain in pak army or mbbs from amc can be captain at Pakistan arny

  5. I didn’t know who and where to ask on this forum if I can get any entry test exam papers for 2015 or 2016 specifically for KMC? Thanks

  6. Since it’s not mentioned anywhere in sindh textbook of biology that co-factor is the only non protein part of an enzyme and it’s mentioned at the top of page that “prosthetic group is the non protien part of an enzyme. If it’s inorganic then it’s co-factor and if it’s organic then it is co-enzyme.” Prosthetic group is the right answer.

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