AP BIOLOGY

Detailed explanation-1: -The statement is false. Saliva contains salivary amylase(ptyalin) that converts starch into maltose .

Detailed explanation-2: -Amylases digest starch into smaller molecules, ultimately yielding maltose, which in turn is cleaved into two glucose molecules by maltase.

Detailed explanation-3: -Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.

Detailed explanation-4: -Saliva contains the enzyme, salivary amylase. This enzyme begins carbohydrate digestion by breaking some of the bonds between individual units of disaccharides, oligosaccharides, and starches. The salivary amylase breaks down amylose and amylopectin into smaller chains of glucose, called dextrins and maltose.

Detailed explanation-5: -In human physiology, both the salivary and pancreatic amylases are -amylases. They act at random locations along the starch chain, breaking it down into di-and tri-saccharides (maltose and maltotriose), which will be converted by other enzymes to glucose to supply the body with energy.