Q1- Outermost layer, thin elastic, diminishes as cell membrane composed of cellulose, hemicelluloses & pectin. (a) Primary wall (b) Secondary wall (c) Tertiary wall (d) None Q2-Middle lamella consists of – (a) Ca (b) Mg (c) K (d) Two of the above Q3- who discovered cell-coat? (a) Karl Landerstein (b) […]