Sieve tubes has a perforated cell wall. The xylem vessels and phloem sieve tubes are connected end to end to transport water and food respectively to long distances in a plant. Their end plates are perforated to allow easy passage of substances from one vessels (in case of xylem) and sieve tubes (in case of phloem).

Which cell have a perforated cell wall?

Vessels are part of xylem and they have perforated cell walls. So, the correct option is b) companion cell. Note: Do not confuse between companion cell and tracheid.

Which of the following tissues have perforated walls?

Vessels consist of long cylindrical tube-like structures composed of several cells. Each xylem vessel is formed by the connection of a large number of short, wide, lignified dead cells. They are connected by perforations in their shared walls.