Question

Heart wood differs from sap wood in

• A. presence of rays and fibres
• B. absence of vessels and parenchyma
• C. having dead and non-conducting elements
• D. being susceptible to pests and pathogens

Answer 1

The correct option is C

having dead and non-conducting elements

Heart wood is non-functional wood due to tylose formation and deposition of secondary metabolites such as tanin, resin, gums and other oils. Heartwood is very dark as compared to the sapwood.