Differentiation

  Transport in plants ●         Introduction ●         Plants contain two types of transport vessel: o     Xylem vessels  – transport water and minerals from the roots to the stem and leaves o     Phloem vessels  – transport food materials (mainly sucrose and amino acids) made by the plant from photosynthesizing leaves to non-photosynthesizing regions in the roots and stem. ●         These vessels are arranged throughout the root, stem and leaves in groups called  vascular bundles. ●         Xylem vessels   ●         Xylem cells lose their top and bottom walls to form a continuous tube through which water moves through from the roots to the leaves. ●         Adaptations: o     Cells joined end ...