a flexible plant cell type that occurs in strands or cylinders that support young parts of the plant without restricting growth; primary cell wall unevenly thickened; found at edges of young stem, edges of petioles (leaf stalks), and along veins of leaves
A rigid, supportive plant cell type usually lacking protoplasts and possessing thick secondary walls strengthened by lignin at maturity.
Makes up the majority of the plant and is found as a layer beneath the epidermis. It provides strength and support to the plant; in the roots is involved in food and water storage; and in the leaves, it is the location where photosynthesis occurs.
Plant tissue consisting of cells joined into tubes that transport water and nutrients throughout the plant body.
Vascular plant tissue consisting mainly of tubular dead cells that conduct most of the water and minerals upward from roots to the rest of the plant.
vascular tissue responsible for the transport of nutrients and the carbohydrates produced by photosynthesis
theory that explains how the physical properties of water allow it to move through the xylem of plants
a well-supported theory that explains how food, or sap, moves through a plant (explains how sugars move through the phloem)
part of a root system in which roots branch to such an extent that no single root grows larger than the rest
The ground tissue of a leaf, sandwiched between the upper and lower epidermis and specialized for photosynthesis.