Pepsin enzyme is produced in an inactive form and is activated in situation when it is required because:
Correct answer: C. Quite capable of destroying cells internal structure
- A. Not produced in complete form
- B. It does not work efficiently at that time
- C. Quite capable of destroying cells internal structure
- D. None of the above
Explanation
Explanation:Pepsin is a protein-digesting enzyme and is capable of destroying cells' internal structure, as a result, it is secreted in an inactive form.This option is not correct because pepsinogen is the complete precursor to pepsin. It contains all the necessary amino acids to form Pepsin.This option is also incorrect because it is produced in an inactive form to prevent it from digesting the cells that produce it.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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About Characteristics of Enzymes
Enzymes are globular biological catalysts that lower activation energy without being consumed, usually showing specificity for particular substrates. Questions cover active sites, enzyme substrate complexes, the lock and key and induced fit models, intracellular and extracellular action, and the effects of denaturation, while distinguishing enzymes from non biological catalysts.
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