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Assertion (A): Tyloses are considered as...

Assertion (A): Tyloses are considered as vascular plugs of plants.
Reason (R): They block the lumen of old and injured vessels.

A

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

B

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

C

Assertion is true and Reason is false.

D

Assertion is false and Reason is true.

Text Solution

Verified by Experts

Tyloses are outgrowths on parenchymatous cells of xylem. These helps in preventing the spread of fun gal pathogens. These are selectively permeable to water and nutrients. When the plant gets injured, they block the lumen and obstruct the conduction. Hence, the tyloses are called vascular plugs. Both Assertion and Reason are true and Reason is the correct explanation of Assertion. Hence, the correct option is (a)
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