biology

    Master this deck with 20 terms through effective study methods.

    transport of water in plants

    Created by @thol

    What role do root hairs play in water absorption?

    They increase surface area for efficient uptake.

    How does osmosis contribute to water transport in plants?

    It moves water from lower to higher solute concentration.

    What is the pathway of water from soil to xylem?

    Water travels through root hairs, cortex, and then to xylem.

    How does the structure of root hairs facilitate water movement?

    Their long, thin shape enhances surface area for absorption.

    What is the function of the root cap?

    It protects the growing root from soil friction.

    What happens to root hairs over time?

    They are continuously replaced due to wear from soil.

    How does pressure affect water movement in xylem vessels?

    Higher pressure at the top aids upward water flow.

    What is transpiration and its role in water transport?

    It creates a pull that draws water upward through the plant.

    How are xylem vessels positioned in the root?

    They are centrally located for efficient water transport.

    What is the significance of concentration gradients in water absorption?

    They drive osmosis, crucial for efficient uptake.

    What is the role of root hairs in water uptake?

    They increase surface area for better absorption of water and minerals.

    How does water enter root hairs?

    Water moves from high to low water potential through osmosis.

    What distinguishes the symplastic pathway from the apoplastic pathway?

    Symplastic involves cell cytoplasm, while apoplastic moves through cell walls.

    What drives water movement in the xylem?

    Transpiration creates negative pressure that pulls water upward.

    What is osmosis?

    The movement of solvent through a semi-permeable membrane toward higher solute concentration.

    Why is the apoplastic pathway generally faster?

    It encounters less resistance than the symplastic pathway.

    What is the significance of transpiration in water transport?

    It generates suction that facilitates upward water movement against gravity.

    What structural feature of root hairs aids in water absorption?

    Their elongated shape maximizes contact with soil moisture.

    What happens to water after it enters the root cortex?

    It moves toward the xylem vessels for distribution.

    What is the Casparian strip's function?

    It forces water into the symplastic pathway before entering the xylem.