the active cells found next to sieve tube elements that supply the phloem vessels with all of their metabolic needs.
Back
Card 7
Front
plants that produce seeds containing two cotyledons, which act as food stores for the developing embryo and form the first leaves when the seed germinates.
Back
Card 8
Front
surfaces over which materials are exchanged from one area to another.
Back
Card 9
Front
the complex systems in which the respiratory gases oxygen and carbon dioxide are exchanged in an organism.
Back
Card 10
Front
cells that can open and close the stomatal pores, controlling gaseous exchange and water loss in plants.
Back
Card 11
Front
the pressure created by water in an enclosed system.
Back
Card 12
Front
plants with adaptations that enable them to survive in very wet habitats or submerged or at the surface of water.
Back
Card 13
Front
a transport system where substances are transported in a mass of fluid.
Back
Card 14
Front
diffusion of water through a partially permeable membrane down a water potential gradient. A passive process.
Back
Card 15
Front
transport that is a passive process (does not require energy) and does not use energy from cellular respiration.
