Building block (monomer) of starch:
- β-D-Glucose
- α-D-Glucose
- Galactose
- Fructose
Show answer and 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.