Cellulose: β-D-glucose units joined C1–C4सेलुलोस: C1–C4 जुड़ी β-D-ग्लूकोस इकाइयाँCellulose: β-D-glucose units joined C1–C4

NCERT Cellulose (10.1.4) · Class 12 Chemistry · Chapter 10 · interactive diagram

Parts and what they mean

• β-(1→4) glycosidic link (β-(1→4) ग्लाइकोसाइडी बंध) — C-1 of one β-D-glucose to C-4 of the next. This β-link (not α as in starch) is the basic structural difference between cellulose and starch.
• β-D-Glucose unit (β-D-ग्लूकोस इकाई) — Its C-1 –O– points up (β).
• β-D-Glucose unit (drawn turned over) (β-D-ग्लूकोस इकाई (पलटी हुई)) — In the real chain each unit is rotated 180° relative to its neighbour, which keeps the chain straight. Turned over, its CH₂OH points down.
• β-D-Glucose unit (β-D-ग्लूकोस इकाई) — The chain continues on both sides.

Original diagram drawn by Simple Learning Hub, based on NCERT Cellulose (10.1.4). Report a mistake