BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Starch is a storage form of energy in plants. It contains two polymers composed of glucose units: amylose (linear) and amylopectin (branched).

Detailed explanation-2: -Starch is comprised principally of two glucose polymers, amylose and amylopectin. Both polymers are made up of d-glucose units in cyclic pyranose form, linked through glycosidic bonds between carbons 1 and 4 of adjacent glucose monomers (Figure 1).

Detailed explanation-3: -Amylose and cellulose are both linear polymers of glucose units, but the glycosidic linkages between the glucose units differ. The linkages in amylose are -1, 4-glycosidic linkages, while the linkages in cellulose they are -1, 4-glycosidic linkages.

Detailed explanation-4: -It consists of two types of molecules: the linear and helical amylose and the branched amylopectin. Depending on the plant, starch generally contains 20 to 25% amylose and 75 to 80% amylopectin by weight.

Detailed explanation-5: -Plant starch is composed of two distinct glucan polymers: amylose, a linear chain of glucose units linked through -1, 4-glycosidic bond, and amylopectin, a highly branched glucose polymer including -1, 6-glycosidic linkage at branch points (Fig. 9.2).