EVERYDAY SCIENCE

Detailed explanation-1: -Starch digestion involves the breakdown by -amylase to small linear and branched malto-oligosaccharides, which are in turn hydrolyzed to glucose by the mucosal -glucosidases, maltase-glucoamylase (MGAM) and sucrase-isomaltase (SI).

Detailed explanation-2: -The digestion of starch begins with the action of amylase enzymes secreted in the saliva and small intestine, which convert it to maltotriose, maltose, limit dextrins, and some glucose.

Detailed explanation-3: -It occurs in plants in the form of granules, and these are particularly abundant in seeds (especially the cereal grains) and tubers, where they serve as a storage form of carbohydrates. The breakdown of starch to glucose nourishes the plant during periods of reduced photosynthetic activity.

Detailed explanation-4: -Starch and their derivatives in the chyme are chemically broken down by pancreatic -amylase to maltose, maltotriose, and -limit dextrin in the lumen of the small intestine.

Detailed explanation-5: -Plants form starches, which are also called complex carbohydrates, by stringing together sugars. When you eat starchy foods, the starches are broken down into sugars, including glucose, maltotriose and maltose, by an enzyme called amylase found in your saliva and small intestine.