Question

Sieve tubes are better suited for translocation, because

• A. Possess broader lumen and perforated cross walls
• B. Are broader than long
• C. Possess bordered pits
• D. Possess no end walls

Answer 1

Answer: (A)

Possess broader lumen and perforated cross walls

Sieve tube members are only found in angiosperms. They have pores which are larger and called as sieve plates. They occur end-to-end, forming sieve tubes which allows better translocation of food.
So, the correct answer is 'possess broader lumen and perforated cross walls'