Physio Search

3. The measure of the potential energy of water in a system, influencing the direction of water movement.
4. The state of being swollen or firm due to water uptake in plant cells.
8. Tiny openings on the leaf surface that regulate gas exchange and water loss.
9. The process by which water vapor is lost from plant leaves to the atmosphere.
13. The innermost layer of the root cortex that regulates the flow of water and minerals into the xylem.
14. The rate of flow of a substance, such as water or ions, through a membrane or tissue.
16. The combined process of water evaporation from soil and transpiration from plants.
17. The movement of water across a selectively permeable membrane from an area of high to low water potential.
19. A band of cell wall material in the root endodermis that blocks passive flow of substances into the vascular cylinder.
20. The process by which seeds or other plant tissues absorb water and swell.

1. The vascular tissue responsible for conducting water and minerals from roots to shoots.
2. Microscopic channels that connect the cytoplasm of neighboring plant cells for transport and communication.
5. The force that helps push water upward from the roots, especially when transpiration is low.
6. The movement of organic substances, like sugars, from sources to sinks in the phloem.
7. The theory explaining how water is pulled upward through the plant due to water molecule attraction and evaporation from leaves.
10. The ability of a plant to maintain internal stability despite changing external conditions.
11. The passive movement of molecules from an area of higher concentration to an area of lower concentration.
12. The system of cell walls and intercellular spaces through which water and solutes can move freely in a plant.
15. The plant tissue that transports sugars and other organic nutrients throughout the plant.
18. The continuous network of cytoplasm connected by plasmodesmata through which substances move in plants.