State the chief function of each part of an ovule.

Ovules are contained within the ovary, and in the event of successful pollination, they will become the seed of the fruit. A plant structure that develops into a seed when fertilized is called an ovule. A mature ovule consists of a food tissue covered by one or two future seed coats, known as integuments. A small opening (the micropyle) in the integuments permits the pollen tube to enter and discharge its sperm nuclei into the embryo sac, a large oval cell in which fertilization and development occur.

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