Final answer:
Three factors that influence the upward movement of water in plants are transpiration pull, capillary action, and root pressure.
Step-by-step explanation:
The upward movement of water in plants, known as transpiration, is influenced by several factors:
- Transpiration pull: Water is pulled up through the plant's xylem vessels due to the loss of water vapor from the leaves. This creates a negative pressure or suction force, which helps in the movement of water upwards.
- Capillary action: Water molecules have a strong cohesive force, which allows them to climb up narrow tubes against gravity. This capillary action helps in the movement of water from the roots to the leaves.
- Root pressure: The active transport of ions into the root cells creates a higher solute concentration, resulting in osmosis. This osmotic pressure forces water into the xylem vessels, contributing to the upward movement of water.
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