A person is eating boiled potato; his food contains the component
- cellulose which is digested by cellulase
- starch which is not digested
- lactose which is not digested
- DNA which can be digested by pancreatic DNase
Answer
(4) DNA which can be digested by pancreatic DNase
Solution
(1) Humans do not secrete cellulase, so cellulose is not digested.
(2) Starch is digested by salivary and pancreatic amylase.
(3) Potato contains no lactose (milk sugar).
(4) Potato cells contain nuclei with DNA; as per NCERT, pancreatic juice contains nucleases, so DNA is digested by pancreatic DNase.
Answer: (4)