Building block (monomer) of starch:
Aβ-D-Glucose
Bα-D-Glucose
CGalactose
DFructose
Answer & Solution
Correct answer: B. α-D-Glucose
Starch: polymer of α-D-glucose units linked by α-1,4 (and some α-1,6) glycosidic bonds. Two components: amylose (linear) and amylopectin (branched). Cellulose differs: β-D-glucose linked by β-1,4.
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