Question

what changes occur in the various parts of a flower when it becomes a fruit​

Answer 1

Answer:

When a grain of pollen reaches the stigma, it creates a pollen tube for the sperm to journey down the style and fertilize the ovule; fertilized ovules become seeds. Fertilization is the death of the flower, as the petals drop or wither at this point and the ovary starts to enlarge and ripen into what we know as fruit.

Explanation:

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Answer 2

Fertilization is the process of the female gamete (ovum or egg) fusing with the male gamete (pollen grain) produced in the pollen tube.

• A flower's post-fertilization modifications include:
• The diploid zygote grows into an embryo, which eventually becomes the plant. The zygote produces pro embryos, which are globular, heart-shaped Torpedo Stage, and finally mature embryos.
• Monocots have only one cotyledon, which is termed scutellum, while dicots have an embryonic axis and two cotyledons.
• The endosperm cells give the embryo the necessary nourishment.
• The ovule develops into a seed.
• The fruit is formed by the ovary. The ovary wall is converted into the pericarp, a protective coat that protects the fruit.
• The testa, or seed coat, is made up of the ovule's outer and inner integuments.
• The petals and sepals of the flowers fall off.