Assertion :Water and mineral uptake by root hairs from the soil occurs through apoplast until it reaches endodermis. Reason: Casparian strips in endo-dermis are suberized.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Water and mineral uptake by root hair from the soil occurs through apoplast till it reaches endodermis. The apoplastic movement is blocked by the suberized casparian strip in the endodermal cell when it moves beyond the endodermis. Hence option A is the correct answer.

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Similar questions

Q. Assertion :Water and mineral uptake by root hairs from the soil occurs through apoplast until it reaches endodermis Reason: Casparian strips in endodermis are suberized

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

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can be derived from Van der Waal's equation.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
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(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

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