structure of xylem vessels Flashcards
What is the function of xylem vessels in plants
To transport water and mineral salts from the roots to the rest of the plant.
How is the structure of xylem vessels suited to their function
Their structure helps water move easily and efficiently through the plant.
Hollow tubes- non-living
with lignified walls; no
end walls- allow for a
continuous flow of water
Why are xylem vessels hollow and non-living
Being hollow allows water to flow freely, and since they are non-living, there’s no blockage from cell contents
What is the role of lignin in xylem walls?
Lignin strengthens the walls, prevents collapse, and supports the plant.
Why do xylem vessels have no end walls
No end walls means a continuous tube, allowing water to flow smoothly from one cell to the next.
What direction does water flow in xylem
Water flows upward, from the roots to the leaves
