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Heart wood is the...

Heart wood is the

A

outer part of secondary xylem

B

inner part of secondary xyloem

C

outer part of secondary phloem

D

inner part of secondary phloem

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The correct Answer is:
B
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Assertion: Heart wood is not involved in conduction function. Reason: Tyloses and depositions of tannins, resins, and gums is common in duramen cells.

Heart wood is softer than the sap wood and not durable.

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Heart wood helps in

Heart wood is dark ............... in colour.

Younges heart wood is present

Sap wood/Heart wood is dark brown in colour.

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TRUEMAN BIOLOGY-ANATOMY OF FLOWERING PLANTS -MULTIPLE CHOICE QUESTIONS
  1. An example of monocots showing secondary growth in stem is

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  2. Bulliform or motor cells take part in

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  3. Heart wood is the

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  4. Some vascular bundles are described as open because these

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  5. In kranz anatomy, the bundle sheath cells have

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  6. Ground tissue includes

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  7. In land plants the guard cells differ from other epidermal cells in ha...

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  8. The cork cambium, cork and secondary cortex are collectively called

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  9. Which of the following meristem calssification is based on position in...

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  10. Which is not true for anatomy of the Dicot stem ?

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  11. as compared to a dicot root, a monocot root has

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  12. The cambium which produces cork is known as Or The common bottle c...

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  13. Water containing cavities in vascular bundles are found in

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  14. Companion cells are closely accociated with Or Transport of food...

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  15. The elements of xylem tissue that store tannins are

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  16. The commercial jute fibres are obtained from

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  17. A common character of monocot and dicot roots is

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  18. A cut trunk shows 26 concentric rings of spring wood and autum wood in...

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  19. Casparian strips are present in the of the root

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  20. Vascular bundle having phloem at the centre encircled by xylem is know...

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