An organized and differentiated cellular structure having cytoplasm but no nucleus is:
Correct answer: C. Sieve tubes
- A. Vessels
- B. Xylem parenchyma
- C. Sieve tubes
- D. Tracheids
Explanation
An organised and differentiated cellular structure having cytoplasm but no nucleus are sieve tubes. The sieve tubes are living cells. Their walls are thicker than surrounding parenchyma cells. Sometimes they havea special, shining nacreous thickening. Cytoplasm occurs in the form of thin lining enclosing a big central vacuole.
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About Kingdom Plantae
Plants are multicellular, photosynthetic eukaryotes with cellulose cell walls, chloroplasts and large vacuoles. Coverage includes alternation of generations, vascular and non-vascular plants, seedless and seed-producing groups, gymnosperms and angiosperms, and the distinction between monocot and dicot features.
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