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Identify the wrong statement in context of heartwood:
- Option 1)
Organic compounds are deposited in it
- Option 2)
It is highly durable
- Option 3)
It conducts water and minerals efficiently
- Option 4)
It comprises dead elements with highly lignified walls
Answers (1)
As discussed in
Heart wood -
New secondary xylem tissues degenerated into the old secondary xylem. Waste materials like lignin, suberin, tannin and resin gums are formed due to degeneration. All waste materials are filled in lumen of tracheids and vessels of secondary xylem.
- wherein
Wood in center becomes dark coloured which is called heart wood or duramen.
and
Sap wood -
The peripheral or outer wood which looks light in color is known as Sap wood or Alburnum.
- wherein
The active work of sap wood is water conduction. Heart wood provides the mechanical strength.
Heartwood doesn't conducts water and minerals efficiently but provide mechanical strength.
Option 1)
Organic compounds are deposited in it
This solution is incorrect
Option 2)
It is highly durable
This solution is incorrect
Option 3)
It conducts water and minerals efficiently
This solution is correct
Option 4)
It comprises dead elements with highly lignified walls
This solution is incorrect
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