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| 1. |
All the following statements regarding sieve tube elements are true expectA. Their end walls have perforated sieve plates which become impregnated with lignin at maturityB. They posses a peripheral cytoplasm as well as a large vacuoleC. Distinct proteinaceous inclusions, the p- proteins are seen evenly distributed throughout the lumenD. Long, slender, tube-like structures arranged in longitudinal series |
| Answer» Correct Answer - A | |