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Give a detailed note on matured Embryo sac. ​

Answer» <html><body><p>ANSWER</p><p>A typical mature embryo sac of Angiosperms is a 7-celled and 8-nucleate structure.</p><p>(i) At the micropylar end, an egg <a href="https://interviewquestions.tuteehub.com/tag/apparatus-881870" style="font-weight:bold;" target="_blank" title="Click to know more about APPARATUS">APPARATUS</a> is present which <a href="https://interviewquestions.tuteehub.com/tag/consists-930075" style="font-weight:bold;" target="_blank" title="Click to know more about CONSISTS">CONSISTS</a> of an egg cell and 2 synergid cells. Synergids <a href="https://interviewquestions.tuteehub.com/tag/contain-409810" style="font-weight:bold;" target="_blank" title="Click to know more about CONTAIN">CONTAIN</a> filiform apparatus which guides the pollen tube entry into the embryo sac during fertilisation.</p><p>(ii) At the chalazal end, three antipodal cells are present.</p><p>(iii) In the centre, two polar <a href="https://interviewquestions.tuteehub.com/tag/nuclei-1125994" style="font-weight:bold;" target="_blank" title="Click to know more about NUCLEI">NUCLEI</a> are present which get fused prior to fertilisation to form a diploid secondary nucleus.</p><p>Hence, 8 nuclei are constituted within 7 cells. <a href="https://interviewquestions.tuteehub.com/tag/thus-2307358" style="font-weight:bold;" target="_blank" title="Click to know more about THUS">THUS</a>, embryo sac is 7-celled and 8-nucleate</p></body></html>


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