BI-2018
Transpiration pull
Biology · Secondary 4 · Medium · Transpiration pull
In a maize plant, water is pulled up from the roots to the leaves where it evaporates into the air. Which statement correctly describes this process of transpiration pull?
- Evaporation of water from leaves creates a suction that pulls water up the xylem from roots.
- Roots push water up by active transport through the phloem into the leaves.
- Water moves from leaves down to roots through xylem due to gravity.
- Water is pumped up the stem by contractile cells in the xylem walls.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.