Anatomy of Flowering PlantsMedium
Question
An organized and differentiated cellular structure having cytoplasm but no nucleus is
Options
A.vessels
B.xylem parenchyma
C.sieve tubes
D.tracheids
Solution
Sieve tubes are food conducting elements of phloem. They possess nucleus in the young stage but disappears in mature ones. The central part of sieve tube has an organized and differentiated cellular structure with a network of cytoplasmic ctrnds, though the peripheral cytoplasmic strands, though the peripheral cytoplasm is thin and tonoplast is absent.
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