Lesson Plan: Translocation in the Phloem Biology • Second Year of Secondary School
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to describe the process of translocation in plants.
Objectives
Students will be able to
- describe the process of translocation in terms of the movement of sucrose around the plant,
- recall that the movement of sucrose is bidirectional,
- outline the role of the components of the phloem (sieve tube elements and companion cells) in the transport of sucrose,
- describe the structure and the function of companion cells in assisting the movement of sucrose,
- describe the structure and the function of sieve tube elements in the phloem,
- analyze and discuss experiments performed to understand the transport of sugars in the phloem.
Prerequisites
Students should already be familiar with
- the fact that plants require their own sources of food to function,
- the fact that photosynthesis is the process by which plants produce their own food.
Exclusions
Students will not cover
- the process of converting glucose to sucrose,
- active loading.
