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Asexual and Sexual Reproduction in Plants — BIO BOTANY STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12BIO BOTANYAsexual and Sexual Reproduction in Plants3 Marks
Question
Enumerate the functions of tapetum.
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Answer

  1. It supplies nutrition to the developing microspores.
  2. It contributes sporopollenin through ubisch bodies thus plays an important role in pollen wall formation.
  3. The pollenkitt material is contributed by tapetal cells and is later transferred to the pollen surface.
  4. Exine proteins responsible for ‘rejection reaction’ of the stigma are present in the cavities of the exine. These proteins are derived from tapetal cells.

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