6. Draw the I.S. of a pistil of angiosperms which is ready to take part in the process of fertilization.
Or
What are the cells present in a developed embryo sac of angiosperms?
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Solution
Dear Student,
What are the cells present in a developed embryo sac of angiosperms?
Answer: A developed embryo sac contains seven cells.
Three cells are present at the micropylar end in the form of a group and constitute the egg apparatus. In these, one is egg cell and the other two are synergids.
Three cells are present at the chalazal end. These are called the antipodal cells
A large central cell, having two polar nuclei.
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