Knowra Ground tissue Ground tissue Ground tissue is the plant tissue system occupying regions between dermal and vascular tissues. Its cells perform photosynthesis, storage, secretion, and structural support.
Parenchyma : Living, thin-walled plant cells that carry out photosynthesis, storage, secretion, and tissue repair. Parenchyma forms much of the ground tissue in leaves, stems, and roots.
Cell wall : A rigid extracellular layer surrounding plant cells, made chiefly of cellulose and other polysaccharides. Differences in wall thickness and composition give ground-tissue cells flexibility or strength.
Leaf : A plant organ specialized chiefly for photosynthesis, gas exchange, and water loss. Leaf ground tissue forms the mesophyll, where most photosynthesis occurs.
Dermal tissue : The plant tissue system forming the outer covering of organs and regulating protection, gas exchange, and water loss. Dermal tissue covers plant surfaces, while ground tissue occupies internal regions.
Collenchyma : Living plant cells with unevenly thickened primary walls that strengthen growing organs without preventing elongation. Collenchyma provides flexible support in ground tissue, especially in young stems and leaves.
Chloroplast : A photosynthetic organelle in plants and algae that converts light energy into chemical energy. Chloroplasts in leaf ground tissue enable photosynthesis.
Stem : A plant axis that supports leaves and reproductive structures and transports materials between roots and shoots. Stem ground tissue includes cortex and pith, contributing storage and support.
Vascular tissue : The plant tissue system that transports water, minerals, and sugars through xylem and phloem. Vascular tissue conducts materials; ground tissue mainly supports, stores, or photosynthesizes.
Sclerenchyma : Plant support cells with thick, usually lignified walls; mature sclerenchyma cells are often dead. Sclerenchyma supplies rigid strength where ground tissue must resist bending or compression.
Photosynthesis : The process by which plants, algae, and some bacteria use light to build organic molecules from carbon dioxide and water. Photosynthesis is a primary function of chloroplast-rich ground tissue in leaves.
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