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Question
Inner darker, harder portion of secondary xylem that cannot conduct water in older dicot stem is called?
Inner darker, harder portion of secondary xylem that cannot conduct water in older dicot stem is called?
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Solution
The correct option is B Duramen
A-The outer light coloured, functional secondary xylem or wood, takes up in the conduction of water of sap is called sapwood or alburnum.B.Bast - secondary phloem formed during secondary growth from vascular cambium towards its outer side.C. Duramen - The central or inner dark coloured non-functional wood or secondary xylem, not takes part in the conduction of water is called Duramen or Heartwood.D.Wood - secondary xylem formed during secondary growth from vascular cambium towards its inner side.
A-The outer light coloured, functional secondary xylem or wood, takes up in the conduction of water of sap is called sapwood or alburnum.
B.Bast - secondary phloem formed during secondary growth from vascular cambium towards its outer side.
C. Duramen - The central or inner dark coloured non-functional wood or secondary xylem, not takes part in the conduction of water is called Duramen or Heartwood.
D.Wood - secondary xylem formed during secondary growth from vascular cambium towards its inner side.
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