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Which xylem element have highly thickned...

Which xylem element have highly thickned walls and obliterated central lumen?

A

If both Assertion & Reason are True & Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but the Reason is a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D
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ALLEN-STRUCTURAL ORGANISATION IN PLANTS (MOPRHOLOGY OF FLOWERING PLANTS & ANATOMY OF FLOWERING PLANTS)-Exercise-IV (Assertion & Reason)
  1. Assertion: Both apical meristem and intercalary meristem areprimary me...

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  2. Assertion :- Simple permanent tissues are homogenous tissue. Reason:...

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  3. Which xylem element have highly thickned walls and obliterated central...

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  4. Assertion :- Companion cells are essential for functioning of sieve tu...

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  5. Assertion :- Epidermal tissues system is of protective in function. ...

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  6. Assertion :- Epidermal stem hairs are usually of multicellular in natu...

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  7. Assertion :- Pericycle of monocot roots show dual functioning. Reaso...

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  8. Assertion :- Both vascular cambium and cork cambium are lateral merist...

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  9. Assertion :- Vascular cambium of dicot stem shows dual origin. Reaso...

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  10. Differentiate between Fascicular cambium and interfascicular cambium

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  12. Assertion :- Vascular cambium activity is not uniform throughout the y...

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  13. Assertion: In dicot stem, endodermis is also called as starch sheath. ...

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  14. Assertion :- Cork cambium activity is responsible for slough off perip...

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  15. Assertion :- Removal of bark in the form of ring from tree leads to d...

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