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The arrangements of ovules within the ovary is known as placentation. What does the term placenta refer to? Name and draw various types of placentations in the flower as seen in T.S. or V.S. - Biology

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Question

The arrangements of ovules within the ovary is known as placentation. What does the term placenta refer to? Name and draw various types of placentations in the flower as seen in T.S. or V.S.

Diagram

Solution

The placenta is a cushion-like flattened tissue to which one or even more ovules are attached. It nourishes the developing embryo.


(a) Parietal Placentation


(b) Marginal  Placentation


(c) Axile placentation 


(d) Free central placentation


(e) Basal

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Chapter 5: Morphology of Flowering Plants - Exercises [Page 26]

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NCERT Exemplar Biology [English] Class 11
Chapter 5 Morphology of Flowering Plants
Exercises | Q 5. | Page 26
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