How do the cells of wood rays differ from tracheids?

Answer 1

The xylem is the principal water-conducting tissue of vascular plants. It consists of tracheary elements, tracheids and wood vessels and of additional xylem fibres. All of them are elongated cells with secondary cell walls that lack protoplasts at maturity. Bordered pits are typical for tracheids, while wood vessels are marked by perforated or completely dissolved final walls
Pine stems also contain bands of cells called rays and scattered resin ducts. Wood rays extend outwardly in a stem cross section like the spokes of a wheel. The rays are composed of thin-walled parenchyma cells which disintegrate after the wood dries. This is why wood with prominent rays often splits along the rays. Annual rings and rays produce the characteristic grain of the wood, depending on how the boards are cut at the saw mill.

Answer 2

rays store food, help move nurients laterally, and aid in wound repair....they are living cells... Tracheids are dead at maturity and function primarily in long-distance water transport.