AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
The enzyme salivary amylase present in saliva breaks down starch (a complex molecule) into simple sugars.
Source: Life Processes, Section 5.2.4
The textbook explicitly names "salivary amylase" as the enzyme in saliva responsible for starch digestion. Examiners expect the specific enzyme name — writing just "amylase" may fetch the mark, but "salivary amylase" is the precise term used in the NCERT text. Do not write "ptyalin," as that name does not appear in the prescribed textbook.