Biochemistry - Enzymes
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This is the MCQs of Biochemistry
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Question 1 of 52
1. Question
Enzyme + coenzyme constitutes:
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Question 2 of 52
2. Question
Multiienzyme complex in human:
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Question 3 of 52
3. Question
Hexokinase is a:
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Question 4 of 52
4. Question
Key glycolytic enzymes:
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Question 5 of 52
5. Question
Coenzyme responsible for single carbon transfer is:
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Question 6 of 52
6. Question
Benzidine test is positive with the enzyme:
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Question 7 of 52
7. Question
Michaelis-Menten hypothesis states that:
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Question 8 of 52
8. Question
Dehydrogenase used as coenzymes all of the following, except:
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Question 9 of 52
9. Question
Muscle glycogen, which cannot contribute to blood glucose due to the absence of which enzymes?
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Question 10 of 52
10. Question
Which of the following is correct of the pyruvate dehydrogenase enzyme complex?
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Question 11 of 52
11. Question
Elevated levels of serum glutamic oxaloacetic transaminase in indicative of:
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Question 12 of 52
12. Question
Competitive enzyme inhibition will cause:
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Question 13 of 52
13. Question
The enzyme that is specifically increased in obstructive jaundice is:
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Question 14 of 52
14. Question
The deficiency of thiamine can be identified by measuring the red cell:
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Question 15 of 52
15. Question
Acetyl Co-A acts as a substrate for all the enzymes except:
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Question 16 of 52
16. Question
The activity of the following enzyme is affected by biotin deficiency
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Question 17 of 52
17. Question
Km of an enzyme is:
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Question 18 of 52
18. Question
Enzymes help by:
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Question 19 of 52
19. Question
A material that speeds up a chemical reaction without chemically becoming involved is called:
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Question 20 of 52
20. Question
The main site of fluoride inhibition in the Embden Meyerhof pathway of acid:
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Question 21 of 52
21. Question
Fraction of CPK is an enzyme that is elevated in a myocardial infarct is:
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Question 22 of 52
22. Question
Muscle glycogen cannot contribute directly to blood glucose level because:
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Question 23 of 52
23. Question
Enzymes are classified according to:
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Question 24 of 52
24. Question
Enzymes involved in degradation of epinephrine:
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Question 25 of 52
25. Question
The activity of this plasma enzyme is responsible virtually for all plasma cholesterol esters in humans:
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Question 26 of 52
26. Question
In mycocarrdial infarction the first enzyme to rise:
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Question 27 of 52
27. Question
Enzyme that catalyses the transfer of a molecule group from one molecule to another is:
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Question 28 of 52
28. Question
The enzymes that catalyses the same reaction but differ in physical properties are called as:
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Question 29 of 52
29. Question
Pick the odd one out:
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Question 30 of 52
30. Question
The enzyme that splits hydrogen peroxide into water and oxygen is:
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Question 31 of 52
31. Question
An enzyme that makes a double stranded DNA copy from a single stranded RNA template molecule is known as:
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Question 32 of 52
32. Question
Serum alkaline phosphatase level increase in:
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Question 33 of 52
33. Question
An example of layses is:
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Question 34 of 52
34. Question
Enzymes concerned with the citric acid cycle are found in:
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Question 35 of 52
35. Question
Which of the following is a membrane bound enzyme that catalyzes the formation of cyclic AMP from ATP?
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Question 36 of 52
36. Question
The most common enzyme deficiency in man is:
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Question 37 of 52
37. Question
The combination of main supporting enzyme is called:
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Question 38 of 52
38. Question
Coenzyme, in an enzymatic reaction usually functions to:
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Question 39 of 52
39. Question
Lactate dehydrogenase is:
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Question 40 of 52
40. Question
When the prosthetic group of an enzyme is an inorganic ion, it is called a:
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Question 41 of 52
41. Question
Enzymes stored in muscle is:
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Question 42 of 52
42. Question
Megnesium is needed for the activity of which enzymes?
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Question 43 of 52
43. Question
Iron is present in all of the following except:
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Question 44 of 52
44. Question
The enzyme phosphofructo kinase-1 is strongly activated by:
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Question 45 of 52
45. Question
Inactive precursors of enzymes are known as:
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Question 46 of 52
46. Question
One of the earliest symptoms of Vit. A deficiency is:
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Question 47 of 52
47. Question
Cofactor required for lipoprotein lipase activity is:
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Question 48 of 52
48. Question
LDH has following number oflsoenzymes
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Question 49 of 52
49. Question
Mutation in the oxidative enzymes (peroxisomes) could lead to:
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Question 50 of 52
50. Question
A example of a preventive antioxidant is:
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Question 51 of 52
51. Question
Biotin is required for the activity of:
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Question 52 of 52
52. Question
Which of the following is NOT a characteristic feature of allosteric enzymes?
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