Plant Processes >Transport > Objectives

Transport of substances from one plant organ to another is an essential requirement for living on land, at least if a plant is to achieve a size greater than an inch in height. You have already learned that the vascular tissue system is responsible for water, mineral and food conduction throughout the plant. In this module, you will learn the how food and water is transported throughout the plant. When you complete the Transport module, you will be able to:

  1. Define the term energy and distinguish and give examples of kinetic energy and potential energy.
  2. List the three factors that influence the kinetic energy of particles in a population and describe the effect on kinetic energy as a result of increasing each of these factors.
  3. Define the terms diffusion and equilibrium.
  4. Describe where diffusion occurs within a plant.
  5. Distinguish between diffusion, osmosis, and plasmolysis.
  6. Define the term transpiration and explain the role of transpiration in the movement of water through the plant.
  7. Define the term cohesion and explain its role in transport of water in the xylem.
  8. Define the term active transport and distinguish active transport from passive transport.
  9. Give a brief explanation of how sucrose is transported to the rest of the plant.


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Table of Contents
Page Description
1
Introduction to energy
2
Kinetic energy in populations
3
Diffusion
5
Membrane Structure and Diffusion
6
Osmosis
9
Path of water and transpiration
10
Transport in the xylem/cohesion
11
Water movement in the root
12
Active transport
13
Transport in the Phloem
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Summary