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Question
Casparian strips are present in ......................... of the root.
Casparian strips are present in ......................... of the root.
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Solution
The correct option is B Endodermis
The innermost cortical layer of dicot root is called as endodermis. Its cells are barrel-shaped and closely packed. The cells get suberized on their radial and inner walls. These thickenings are called as Casparian strips. The Casparian strip blocks the passive flow of materials, such as water and solutes from passing into the stele of a plant thereby, forcing those to pass through the cell walls of the root where their passage is mediated by gates for each specific nutrient. Thus, the correct answer is option D.
The innermost cortical layer of dicot root is called as endodermis. Its cells are barrel-shaped and closely packed. The cells get suberized on their radial and inner walls. These thickenings are called as Casparian strips. The Casparian strip blocks the passive flow of materials, such as water and solutes from passing into the stele of a plant thereby, forcing those to pass through the cell walls of the root where their passage is mediated by gates for each specific nutrient.
Thus, the correct answer is option D.
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