Concept:Hydrolysis is the chemical process by which starch is broken down into glucose using water.
Explanation:Starch is a polysaccharide built from many glucose units linked by glycosidic bonds.
To release glucose, these glycosidic bonds must be broken.
Water supplies the hydrogen and hydroxyl groups needed to cleave each bond.
This reaction, in which a large molecule is split into smaller molecules by the addition of water, is called hydrolysis.
Condensation is the opposite process: it joins small molecules together while eliminating water.
Dehydration only removes water from a substance and does not convert starch into glucose.
Fermentation acts on glucose, converting it into ethanol, so it cannot convert starch into glucose.
Therefore, only hydrolysis correctly describes the conversion of starch to glucose.
Answer:D. Hydrolysis