Protein MCQs Part 10

1. Pepsinogen is converted to active pepsin by

• HCl
• Bile salts
• Ca++
• Enterokinase

2. The optimal pH for the enzyme rennin is

• 2.0
• 4.0
• 8.0
• 6.0

3. The optimal pH for the enzyme trypsin is

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

4. The optimal pH for the enzyme chymotrypsin is

• 2.0
• 4.0
• 6.0
• 8.0

5. Trypsinogen is converted to active trypsin by

• Enterokinase
• Bile salts
• HCl
• Mg⁺⁺

6. Pepsin acts on denatured proteins to produce

• Proteoses and peptones
• Polypeptides
• Peptides
• Dipeptides

7. Renin converts casein to paracasein in presence of

• Ca++
• Mg⁺⁺
• Na⁺
• K⁺

8. An expopeptidase is

• Trypsin
• Chymotrypsin
• Elastase
• Elastase

9. The enzyme trypsin is specific for peptide bonds of

• Basic amino acids
• Acidic amino acids
• Aromatic amino acids
• Next to small amino acid residues

10. Chymotrypsin is specific for peptide bonds containing

• Uncharged amino acid residues
• Acidic amino acids
• Basic amino acid
• Small amino acid residues

Score =

Correct answers:

Protein MCQs Parts => 1.. 2.. 3.. 4.. 5.. 6.. 7.. 8.. 9.. 10.. 11..

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