7
Question
Central resin-clogged secondary xylem is?
Central resin-clogged secondary xylem is?
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Solution
The correct option is A Heartwood
A.Central
wood - The hard fibrous material that forms the main substance of the trunk or
branches of a tree or shrub, used for fuel or timber.
B.Heart
wood - The inner or central dark colored
non-functional resin clogged wood or secondary xylem formed during secondary growth
in dicot stem is called Heart wood or duramen.
C.Alburnum–
The outer light coloured functional wood which contains living cells formed
during secondary growth in dicot stem is called Alburnum or sap wood.
D.Hardwood –
secondary xylem or wood present in broad leaved tropical and temperate forests.
So, the
correct option is ‘Heart wood’.
A.Central wood - The hard fibrous material that forms the main substance of the trunk or branches of a tree or shrub, used for fuel or timber.
B.Heart wood - The inner or central dark colored non-functional resin clogged wood or secondary xylem formed during secondary growth in dicot stem is called Heart wood or duramen.
C.Alburnum– The outer light coloured functional wood which contains living cells formed during secondary growth in dicot stem is called Alburnum or sap wood.
D.Hardwood – secondary xylem or wood present in broad leaved tropical and temperate forests.
So, the correct option is ‘Heart wood’.
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