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Question

Which one of the following is not a brush boarder enzyme of intestine

A
Maltase
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B
Sucrase
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C
Lactase
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D
Lipase
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Solution

The correct option is A Maltase
  • Brush border enzymes are the enzymes are those secreted by the brush border of the small intestine ie the villi which are present in the intestine.
  • These enzymes are secreted by the integral proteins present in the apical border of the plasma membrane of the villi.
  • Maltase for digestion of maltose sugar, Sucrase for digestion of sucrose, Lactase for digestion of Lactose and other enzymes for digestion of polysaccharides and proteins are secreted by the intestine.
  • Where as enzymes for the digestion of lipid ie lipase are secreted by pancreas.
  • Therefore the correct answer for the question is option D.

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