Question

Heartwood differs from sapwood in ____________________.

• A. Absence of vessels and parenchyma
• B. Having dead and non-conducting elements
• C. Being susceptible to pests and pathogens
• D. Presence of rays and fibers

Answer 1

The correct option is B Having dead and non-conducting elements

The older woody trees show two characteristic types of wood namely heartwood and sapwood. The heartwood is made up of dead xylem vessels that have been filled with tyloses and are rich in deposits of resins and tannins. These are non-functional and appear darker.

The sapwood contains the newly formed vessels that are functional and appear lighter. The hardwood provides resistance from the pest attack and increases the durability of the wood.

Hence, the correct answer will be having dead and non-conducting elements.

The correct option is B.