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Question
Casparian strips are present in:
Casparian strips are present in:
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Solution
The correct option is A Endodermis
Casparian strip is a band of cell wall material deposited on the radial and transverse walls of the endodermis and is chemically different from the rest of the cell wall - the cell wall being made of lignin and without suberin, whereas the Casparian strip is made of suberin and sometimes lignin. It blocks the passive flow of materials such as water and solutes into the stele of a plant. So, Casparian bands are present in endodermis and not in pericycle, periderm or cortex.
Thus, the correct answer is option A.
Casparian strip is a band of cell wall material deposited on the radial and transverse walls of the endodermis and is chemically different from the rest of the cell wall - the cell wall being made of lignin and without suberin, whereas the Casparian strip is made of suberin and sometimes lignin. It blocks the passive flow of materials such as water and solutes into the stele of a plant. So, Casparian bands are present in endodermis and not in pericycle, periderm or cortex.
Thus, the correct answer is option A.
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