Transport In Plants Flashcards
(10 cards)
What is the primary function of root hair cells?
To take in water from the soil
Root hair cells increase the surface area for absorption.
How do root hair cells absorb water?
Through osmosis.
What is transpiration?
The process of water movement through a plant and its evaporation from aerial parts.
List the four factors affecting transpiration.
- Light intensity
- Temperature
- Wind speed
- Humidity
How does light intensity affect the rate of transpiration?
Brighter light increases the rate of transpiration because stomata close in darkness.
What is the relationship between temperature and transpiration rate?
Higher temperature results in a higher rate of transpiration.
How does wind speed influence transpiration?
Higher wind speed around the leaf increases the rate of transpiration by sweeping away water vapor.
What effect does humidity have on transpiration?
Higher humidity results in a lower rate of transpiration.
Fill in the blank: Water enters roots via _______.
Osmosis.
True or False: Stomata are open during darkness to facilitate transpiration.
False.
