1.

The region in the secondary phloem that comprises of dead elements and protected by lignified walls is called as _____(a) Early wood(b) Heart wood(c) Sap wood(d) Late woodThis question was addressed to me in an online quiz.The above asked question is from Flowering Plants Anatomy topic in chapter Anatomy of Flowering Plants of Biology – Class 11

Answer»

Right choice is (b) Heart wood

To explain: The region in the SECONDARY phloem that comprises of dead elements and PROTECTED by lignified WALLS is called Heart wood. Heart wood doesn’t conduct water but instead PROVIDES MECHANICAL support.



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