Which statement describes how water is pulled up through the xylem to the leaves of the plant?
Understand the Problem
The question is asking which statement correctly explains the mechanism of how water is transported through the xylem in plants, specifically focusing on the role of evaporation and hydrogen bonding in this process.
Answer
A: As water exits the leaf, hydrogen bonding between water molecules pulls more water up from below.
The final answer is A: As water exits the leaf, hydrogen bonding between water molecules pulls more water up from below.
Answer for screen readers
The final answer is A: As water exits the leaf, hydrogen bonding between water molecules pulls more water up from below.
More Information
Transpiration creates a negative pressure that pulls water upwards. Cohesion between water molecules and adhesion to xylem walls assist in this process.
Tips
A common mistake is not accounting for the role of transpiration and cohesion in pulling water upward, which can lead to misunderstanding the mechanisms involved.
Sources
- Which statement describes how water is pulled up - Chegg - chegg.com
- Water Transport in Plants: Xylem | Organismal Biology - Georgia Tech - organismalbio.biosci.gatech.edu
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