Xylem and Phloem
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 ...