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Given alongside is an enlarged view of one microsporangium of a mature anther. (i) Name ‘a’, ‘b’ and ‘c’ wall layers. (ii) Mention the characteristics and function of the cells forming wall layer ‘c’. |
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Answer» (i) = Endothecium, = Middle layers, = Tapetum (ii) Tapetum provides nourishment to the developing pollen grains. The tapetal cells also secrete Ubisch granules that provide sporopollenin and other materials for exine formation. |
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