Mature vessel elements:
A) form sieve tubes in the vascular tissue.
B) have pits in their walls, which allow water to be transported laterally.
C) are alive and contain cytoplasm.
D) are given support by companion cells.
E) occur in pairs, forming stomata in the epidermis.

Question

Quizplus · Accepted Answer

Mature vessel elements are part of the xylem tissue and have pits in their walls that facilitate lateral water movement. They are dead at maturity and do not contain cytoplasm, unlike sieve tubes in phloem, which are supported by companion cells. Stomata are not formed by vessel elements.

Mature Vessel Elements