18: Roots and the Movement of Water - How is water moved through a plant?
- Last updated
- Jun 30, 2025
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Learning Objectives
- Understand what influences the weird behavior of water, particularly tonicity, adhesion, and cohesion
- Learn how transpiration drives the movement of water through a plant and which environmental factors influence transpiration rates
- Predict the movement of water in different situations and explain why it moved the way it did
- Draw and describe the flow of water as it moves through a plant from the soil environment to the atmosphere
This chapter explores how water moves through plants, starting from the soil and traveling up to the leaves. It introduces the unique physical properties of water—such as cohesion, adhesion, and tonicity—and explains how these contribute to water transport. Key processes like diffusion, osmosis, and pressure differences are discussed in the context of how plants absorb, move, and regulate water.
