Question

Sieve tubes are characterised by

• A. Absence of septa
• B. Simple oblique septa
• C. Perforated longitudinal walls
• D. Perforated oblique septa

Answer 1

The correct option is D Perforated oblique septa

Sieve tube elements are connected end to end to form a tubular structure which further plays an integral role in conduction. The prepared sugars in the plant by the process of photosynthesis is conducted via sieve tubes to different parts of the body. The perforations at the interface help in intracellular transport. So, the correct answer is option D.