Protein MCQs Part 9

1. For synthesis of prostaglandins, the essential fatty acids give rise to a fatty acid containing

• 12 carbon atoms
• 16 carbon atoms
• 20 carbon atoms
• 24 carbon atoms

2. All active prostaglandins have at least one double bond between positions

• 7 and 8
• 10 and 11
• 13 and 14
• 16 and 17

3. Normal range of plasma total phospholipids is

• 0.2–0.6 mmol per L
• 0.9–2.0 mmol per L
• 1.8–5.8 mmol per L
• 2.8–5.3 mmol per L

4. HDL2 have the density in the range of

• 1.006–1.019
• 1.019–1.032
• 1.032–1.063
• 1.063–1.125

5.β-lipoproteins have the density in the range of

• 0.95–1.006
• 1.006–1.019
• 1.019–1.063
• 1.063–1.125

6. IDL have the density in the range of

• 0.95–1.006
• 1.006–1.019
• 1.019–1.032
• 1.032–1.163

7. Aspirin inhibits the activity of the enzyme:

• Lipoxygenase
• Cyclooxygenase
• Phospholipae A1
• Phospholipase A2

8. A ’suicide enzyme’ is

• Cycloxygenase
• Lipooxygenase
• Phospholipase A1
• Phospholipase A2

9. In adipose tissue prostaglandins decrease

• Lipogenesis
• Lipolysis
• Gluconeogenesis
• Glycogenolysis

10. The optimal pH for the enzyme pepsin is

• 1.0–2.0
• 4.0–5.0
• 5.2–6.0
• 5.8–6.2

Score =

Correct answers:

Protein MCQs Parts => 1.. 2.. 3.. 4.. 5.. 6.. 7.. 8.. 9.. 10..

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