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Q. Enzyme present in the saliva is

  • (A) lipase
  • (B) trypsin
  • (C) ptyalin
  • (D) invertase
  • Correct Answer - Option(C)
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  • Filed under category Biology
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Explanation by: Admin

Ptyalin, also known as salivary amylase, is the enzyme present in saliva.

  • It helps in the digestion of carbohydrates by breaking down starch into maltose (a simpler sugar).
  • It is the first step in the digestion process, occurring in the mouth before food enters the stomach.

Why not the others?

  • (A) Lipase – Breaks down fats (lipids), mainly found in the stomach and pancreas.
  • (B) Trypsin – Helps in protein digestion, secreted by the pancreas into the small intestine.
  • (D) Invertase – Breaks down sucrose into glucose and fructose, mainly found in yeast, not in saliva.

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