Which of the following has a perforated cell wall? A. Vessel B. Fibre C. Sclereid D. Tracheid
Option A Vessel elements represent a more specialized type of tracheary element. They are usually shorter than tracheids and have perforated end walls called perforation plates. Individual vessel elements are connected end to end in vertical rows to form vessels; each vessel is a continuous tube with little or no obstruction to water flow, depending on the size and type of perforation plates in the end walls.
