Question

The feature which is common to both heartwood and sapwood is

• A. both are the regions of secondary xylem
• B. both are involved in the conduction of water
• C. both are located in the central layers of the stem
• D. both comprise dead elements with accumulation of aromatic compounds

Answer 1

The correct option is A both are the regions of secondary xylem

Only sapwood is involved in the conduction of water because heartwood is blocked with accumulation of aromatic compounds. But both sapwood and heartwood are the part of secondary xylem.