Part C Drag the terms on the left to the appropriate blanks on the right to comp

Question

Part C Drag the terms on the left to the appropriate blanks on the right to complete the sentenoes. Terms may be used more than once. Resetl Help apoplastic Water and dssolved minersls localed in the cell wells and intercelular spaces of the root cortex are in he symplastic route of tranaport, and those in the cytopaam of cortax calle are in the apoplastic route The symplastic route requires plasmodesmets The apoplastic route is obstructed by the Casparian strip, thereby foroing water and minerals to aross the plasma membranes of endodermal cels before gaining entrance into the vascular cylinder. Submit Part D The s of some essentisl minersls are much higher in the vascular cylinder of roots then in the sol solution around the roots. What is the best explanaion for this observation? O Essential minerals are actively transported into the vascular cylinder by the Casparian strip. Essentisl minerals scoumul ste in the spoplsst resching higher concentrafions than in the soil O Some essential mineras are taken into the sympast by active transport Essantial minerals are alzo needed by othar organisms in the soil daplating the minerals in the oil. Submit Part E Some plart species are used for phytoremediation because when grown in scil contaminated by heavy metas and other polutants, they accumulate the contaminents in their tizsues. In this way they can be used to clean up the soil. Such plants are caled 'hyper-accumulators Other plants however, canno take up the contaminants from the sol and are called non-acoumulatora If you were to analyze root cross sections from oach of these types of plants after thay were grown in contaminated soil, what ditterences would you likely find? O Hyper-acoumulators would have contaminants in the vascular cylinder but not the cortex, and non-accumulators would have contaminants in the cortex but not the vascular cylinder ? Hyper-a00umuasors would hgv@ contaminant; in the oortex and vaGcular cy?ndar, and non-accumulators would have oontaminarts in tra cortex but not the vascular cyindar. 0 Hyper-8ccumulators would have contaminants in the cortex but not the vasalar tylinderand non-accumulators would have contaminants in the vasalar cylinder b not tne cortex 0 Hyper accumulators would have cortrminants n the vascular c inder but not the cor ex·and non-accumulators would have contaminants in the conex and the vascu ar c inder. Submit

Explanation / Answer

Ans C) Water and dissolved minerals located in the cell wall and intercellular space of root cortex are in symplastic route of transport and those in the cytoplasm of cortex cells are in the apoplastic route. The symplastic route requires plasmodesmata. The apoplastic route is obstructed by strip, thereby forcing water and minerals to cross the plasma membrane of endothermal cells before gaining entrance into the vascular cylinder.

Ans D)

It is because essential minerals are actively transported into the vascular cylinder by the Casparian strip.

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