Multiple choice

Which of the following is/are examples of endopeptidase?

  1. Trypsin
  2. Chymotrypsin
  3. Pepsin
  4. Carboxpeptidase A Select the correct answer using codes given below:

  1. 1 only

  2. 1 and 4

  3. 1, 2 and 3

  4. 3 and 4

  5. 4 only
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Endopeptidases are proteolytic peptidases that break peptide bonds of nonterminal amino acids. Trypsin is an endopeptidase secreted in an inactive form (trypsinogen) by the pancreas into the duodenum. Chymotrypsin is a serine endopeptidase produced by the acinar cells of the pancreas. Pepsin is an endopeptidase which cleaves peptide linkages formed by amino groups of aromatic and acidic amino acids.

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