A-LevelBiologyBiological molecules9700/12 · Feb/Mar 2025 · Q111 Mark
Plant cell walls are strengthened by cellulose molecules that are arranged in several layers. Within each layer, the cellulose molecules are arranged in the same direction (parallel). Which row shows the bonds that hold adjacent cellulose molecules together within each layer and the arrangement of cellulose molecules in different layers?
Abonds that hold adjacent cellulose molecules together: glycosidic, arrangement of cellulose molecules in different layers: in different directions
Bbonds that hold adjacent cellulose molecules together: glycosidic, arrangement of cellulose molecules in different layers: parallel
Cbonds that hold adjacent cellulose molecules together: hydrogen, arrangement of cellulose molecules in different layers: in different directions
Dbonds that hold adjacent cellulose molecules together: hydrogen, arrangement of cellulose molecules in different layers: parallel
✓ Correct answer
C: bonds that hold adjacent cellulose molecules together: hydrogen, arrangement of cellulose molecules in different layers: in different directions
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Biological molecules and see which topics are most likely to come up next.
Sign up free →