PLANT PHYSIOLOGY
PLANT MOVEMENT
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cortex
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Endodermis
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Xylem
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Root hairs
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Detailed explanation-1: -Casparian strips are the ring-like call wall modifications found in the root of the endodermis of vascular plants. It acts as a barrier to harmful chemicals like herbicides. So it is found in the walls of endodermal cells. Endoderm forms the central and innermost layer of cortex in terrestrial plants.
Detailed explanation-2: -Casparian strips occur in the Endodermis. It is a cell wall material that is deposited in the radial and transverse walls of the endodermis of roots. It is made up of suberin and sometimes of lignin. It regulates the water and mineral uptake by the roots.
Detailed explanation-3: -Casparian strip is generally composed of lignin but sometimes it is composed of suberin. It is mainly formed by the deposition on the radial and transverse walls of the endodermis and is chemically different from the rest of the cell wall.
Detailed explanation-4: -Caspar strips are a water-impermeable layer of water present in the endothelium. It fills the space between cells of the root endodermis. Casparian strips are present in the roots of both monocotyledonous and dicotyledonous plants.
Detailed explanation-5: -The endodermis with its casparian strips may function in regulating the flow of water between outer tissues and the vascular cylinder at the centre of the root.