

InterviewSolution
Saved Bookmarks
1. |
An oranised and differentiated cellular structure having cytoplasm but no nucleus isA. vesselsB. xylem parenchymaC. sieve tubesD. tracheids |
Answer» Correct Answer - c Sieve tubes are food conducting elements of phloem They possess nucleus in the young stage but disappers in mature ones . The central part of sieve tube has an organised and differentiated cellular structure with a network of cytoplasmic strands , though the perpheral cytoplasm is thin and tonoplast is absent. |
|