The portal has been deactivated. Please contact your portal admin.

Lesson Flashcards: Support in Plants Biology

Cellulose

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

Osmosis

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

Lignin

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

Epidermis

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

Xylem

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

Cutin

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

Suberin

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

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.