Transpiration

Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere. Transpiration is essentially evaporation of water from plant leaves. It's a crucial part of the water cycle.

Factors Affecting Transpiration

• Temperature: Higher temperatures increase the rate of transpiration.
• Humidity: Lower humidity levels result in faster transpiration.
• Wind: Increased air movement can carry away water vapor around the leaves, increasing the rate of transpiration.
• Light: Intense light can cause stomata to open wider, increasing transpiration.
• Soil Water Availability: When water is scarce, plants reduce transpiration to conserve water.

Importance of Transpiration

Transpiration is vital for plants for several reasons:

1. It helps in the absorption of water and nutrients from the soil.
2. It cools the plant, similar to how sweating cools our bodies.
3. It helps in the transport of water and minerals throughout the plant.
4. It maintains the turgidity of the plant cells, which is essential for support and structure.

Study Guide

To understand transpiration better, consider these study points:

1. Define transpiration and explain its role in the water cycle.
2. Discuss the structure and function of stomata in transpiration.
3. Explore the factors that affect the rate of transpiration in plants.
4. Explain the importance of transpiration for plant health and survival.
5. Compare and contrast transpiration with other plant processes, such as photosynthesis and respiration.

[Transpiration] Related Worksheets and Study Guides:

• Plant ProcessesScience • Sixth Grade