CDS 2026 (I) General Knowledge, question 2

Topic: Biology

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Q2

Nearly all infants benefit from milk, but most adults cannot properly digest milk. If an elderly person can still digest milk, his body is producing enough of which enzyme ?

  1. (a) Cellulase
  2. (b) Amylase
  3. (c) Pectase
  4. (d) LactaseCorrect answer

Solution.

Answer: (d) Lactase

  1. Lactase breaks milk sugar, lactose, into glucose and galactose.
  2. Continued lactase production into adulthood permits lactose digestion; the other enzymes listed act on different substrates.