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BIOLOGY
Duramen is...

Duramen is

A

sapwood

B

heartwood

C

bark

D

periderm

Text Solution

Verified by Experts

The correct Answer is:
b
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Match the following column and select the correct option. Column I " " Column II Hardwood " " Duramen Softwood " " Alburnum Heartwood " " Non-porous wood Sapwood " " Porous wood

The wood of commerce is (a) sap-wood (alburnum) (b) heart wood( duramen) (c) spring wood (d) autumn wood

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

Match column I with column II and select the correct option from the given codes {:("Column I","Column II"),(A." Hardwood",(i)." Duramen"),(B." Soft wood",(ii)." Alburnum"),(C." Heartwood",(iii)." Non-porous wood"),(D." sapwood",(iv)." Porous wood"):}

Select true statements :- (a) Lenticels are absent in woody climbers and leaves (b) Lenticles occur in most woody trees (c) The spring wood is lighter in colour and has a lower density (d) The sap wood also called as duramen