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Lesson Flashcards: Support in Plants Biology


An insoluble polymer consisting of chains of glucose molecules that is a main constituent of plant cell walls


The movement of water from an area of low solute concentration to an area of high solute concentration across a semipermeable membrane


A polymer that is found in some specialized cell walls to mainly provide mechanical support

Structural support in plants

A type of support that includes the permanent deposition of polymers, such as lignin or cellulose, in cell walls to maintain the shape of the plant and its cells


The outermost layer of cells that coat plant stems, leaves, roots, and other plant parts


A vascular tissue in plants that transports water and dissolved mineral ions from the roots to the other parts of the plant


A waxy water-repellent substance in the epidermis and cuticle of plants

Physiological support in plants

Temporary support that depends on a high volume of water in cell vacuoles exerting turgor pressure on cell membranes to maintain cell shape for cell protection

Cell wall

A rigid structural layer found outside the cell membrane of plant, fungal, and bacterial cells


An impermeable waxy substance present in the cell walls of corky plant tissues

Cell turgidity

The point at which the cell’s membrane pushes against the cell wall, making the cell swollen and firm, usually because of being full of liquid

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