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Parenchyma - prepared slides they stain green Collenchyma |...

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Parenchyma A generalized plant cell type, parenchyma cells are alive at maturity. They function in storage, photosynthesis , and as the bulk of ground and vascular tissues. Palisade parenchyma cells are elogated cells located in many leaves just below the epidermal tissue. Spongy mesophyll cells occur below the one or two layers of palisade cells. Ray parenchyma cells occur in wood rays, the structures that transport materials laterally within a woody stem. Parenchyma cells also occur within the xylem and phloem of vascular bundles . The largest parenchyma cells occur in the pith region, often, as in corn ( Zea ) stems, being larger than the vascular bundles. In many
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Unformatted text preview: prepared slides they stain green. Collenchyma | Collenchyma cells support the plant. These cells are charcterized by thickenings of the wall, the are alive at maturity. They tend to occur as part of vascular bundles or on the corners of angular stems. In many prepared slides they stain red. Sclerenchyma Sclerenchyma cells support the plant. They often occur as bundle cap fibers. Sclerenchyma cells are characterized by thickenings in their secondary walls. They are dead at maturity. They, like collenchyma, stain red in many commonly used prepared slides. A common type of schlerenchyma cell is the fiber....
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