Q156 / 200 · NEET 2022 (Phase 1) · Zoology

Which of the following functions is not performed by secretions from salivary glands?

  • A
    Digestion of complex carbohydrates
  • B
    Lubrication of oral cavity
  • Correct answer
    C
    Digestion of disaccharides
  • D
    Control bacterial population in mouth

Solution

  • Salivary glands are one of the most important glands in our digestive systems which produces saliva. Saliva contains a carbohydrate digesting enzyme called salivary amylase (ptyalin). This enzyme help in the digestion of starch in the oral cavity. Starches are complex carbohydrates formed by longer saccharide chains of amylose and amylopectin.
  • Saliva also helps in lubrication of the buccal cavity.
  • Lysozymes present in saliva protects against bacterial invasion.
  • The digestion of disaccharides and some oligosaccharides is undertaken by a number of small intestinal brush border enzymes like sucrase-isomaltase, lactase, maltase-glycoamylase and trehalase.

Hence, the correct answer is option: 'C'.

Relevant Questions