Xylem and phloem, water uptake, transpiration and translocation.
Xylem and phloem
Xylem carries water and mineral ions from roots to leaves. Xylem vessels are dead, hollow tubes with no end walls, strengthened with lignin. Transport is one way (up).
Phloem carries sucrose and amino acids (made in the leaves) to all parts — translocation. Phloem is living and transport is two-way (up or down to growing or storage regions).
Viewing only
This content is free to read on superexams.com and cannot be printed or downloaded.
Read the full note, free
Create a free account to read this note in full. Every free account gets 2 complete revision notes, no card needed.