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Apoplastic pathway is discontinuous at _______

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in Biology – Class 11 by (272k points)
Apoplastic pathway is discontinuous at _______

(a) epidermis

(b) cortex

(c) casparian strips

(d) pericycle

I have been asked this question during a job interview.

Asked question is from Long Distance Transport of Water topic in section Transport in Plants of Biology – Class 11

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Best answer
The correct option is (c) casparian strips

The best explanation: Apoplastic pathway is carried out as:

Epidermis -> cortex-> endodermis -> pericycle -> xylem.

Casparian strips are a part of endodermis which blocks the Apoplastic pathway. It is made up of suberin.

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