Multiple choice

The glycosylase released by the tips of the villi of epithelium in small intestine in humans is

  1. amylase

  2. lactase

  3. β-galactosidase

  4. chitinase

  5. sucrase
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A Correct answer
Explanation

Amylases are used in breadmaking and to break down complex sugars, such as starch (found in flour), into simple sugars. Yeast then feeds on these simple sugars and converts it into the waste products of alcohol and CO2. This imparts flavour and causes the bread to rise.

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