[Music] tramps like other living organisms and made up of cells or plant cells are eukaryotic cells so self have a nucleus like any multicellular organism plants have specialized tissues made up of different cell types the basic cells of a plant includes sclerenchyma collin climber parenchyma phloem and xylem cells notice how their structural adaptations make the specific functions possible as we take a closer look at each of these cell types a sclerenchyma cell is a hard woody cell that along with other cells provides structural support it contains an organic polymer called lignin that helps make the tissues rigid sclerenchyma cells are of two types fibers post glorious fibers a long slender and have tapered ends that interlock an example is hemp fiber useful making rope sclereids are shorter than fibers irregular in shape and have thickened cell walls they're responsible for making nut shells hard mature sclerenchyma cells can't elongate and they occur in regions of the plants that have stopped growing even though many sclerenchyma cells are dead when they reach functional maturity they continue to provide support for the plant a collenchyma cell is an elongated self that supports new growth particularly in areas of a plant needed extra strength the narrow store connecting a leaf to a plant stem known as the patio is constructed of calling time cells for example the strength of a celery stalk which is a petiole is composed of calling time' cells a parenchyma cell is the thin walled large cell with the very large center of vacuole it contains numerous plastics which perform metabolic processes for example photosynthesis takes place in areas exposed to light such as the leaves with the primary plastids at para blasts in plant parts that do not get any light exposure parenchyma contained colorless plastics and function primarily as carbohydrate storage units parenchyma cells can also store water and transport water over short distances parenchyma cells are living cells meaning they can divide and differentiate into other types of cells under certain conditions like during wound repair xylem is a vein like tissue that carries water from roots and stems to the leaves the xylem consists of cells that are dead at functional maturity flare missed a series of tissues that transports sugars and other materials from the leaves of plants to their roots also referred to as translocation unlike the cells of the xylem the cells of the phloem are alive at functional maturity together the xylem and phloem make up the vascular tissue system of a plant and they're responsible for long-distance transport of materials between the roots and shipped systems the plant cell types that we just looked at are organized into three basic tissue types dermal vascular and ground tissues each tissue type perform specific functions to maintain plant health dermal tissue is the protective tissue layer that prevents water loss and protects plants from attack by bacteria viruses or other pathogens that might cause plant disease vascular tissue supports the xylem and phloem and grow tissue is found in most of the and provides a woody of peppy texture of a plant you [Music]