BiologyUpper Epidermis in Plants Upper epidermis: Upper epidermis is a only layer of cells containing few or no chloroplasts. The cells are relatively transparent and permit most of the…
BiologyPalisade Parenchyma Palisade parenchyma is the upper layer of ground tissue in a leaf, consisting of elongated cells beneath and perpendicular to the upper epidermis and constituting…
BiologySpongy Parenchyma Spongy parenchyma the lower layer of the ground tissue of a leaf, typically containing irregularly shaped cells with relatively few chloroplasts and large intercellular spaces.…
BiologyVascular Bundles Vascular bundles are the components of vascular tissue system in plants. They are also called as ‘fascicle’. They are the part of transport system in…
BiologyLower Epidermis The lower epidermis covers the lower surface of the leaf. It contains stomata cells that help prevent water loss and regulate the exchange of gases…
BiologyFormation of Annual Ring Formation of Annual Ring: An annual ring may be defined as a ring of vascular tissue produced by the fascicular cambium during the course of…
BiologyFormation of Secondary Medullary Rays Formation of secondary medullary rays: Secondary medullary rays are vertical plates of parenchyma cells running radially through the cylinder of vascular tissue in the stems…
BiologyFormation of Cambium Ring Formation of cambium ring: Cambium is a meristem that increases the girth of stems and roots by producing additional xylem and phloem. The intrafascicular cambium,…
BiologyFormation of Secondary Xylem Formation of secondary xylem The cells formed toward the inside are called secondary xylem, or wood, and those formed toward the outside of the cambium…
BiologyFormation of Secondary Phloem Formation of secondary phloem The phloem transports food for the plant made by the leaves, also known as glucose, in the form of sucrose. The…