Assignmentbiology questions to answer Essay Example | Topics and Well Written Essays - 1250 words

Assignmentbiology questions to answer - Essay Example In starch, all the glucose repeat units are oriented in the same direction. But in cellulose, each successive glucose unit is rotated 180 degrees around the axis of the polymer backbone chain, relative to the last repeat unit. Cellulose contains beta linkage and enzymes cannot act upon this linkage, thus maintains the structural integrity, whereas Starch contains alpha acetal linkage. Enzyme can act upon this linkage to produce amulose and amylopectin thereby releasing glucose, source of energy. c. Alpha-glycosidic bond and beta-glycosidic bond d. Amylase acts specifically upon alpha acetal linkage (present in starch). The linkages in celluloses are beta-acetal on which amylase cant act. 2. a- tick mark b- cross mark 3. Calcium- gives strength to the bones Iron- Is an important element in hemoglobin, responsible for oxygen transfer. Phosphate- necessary element in