
What are the changes that occur to ovary and ovule after fertilization in plants?
Answer
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Hint: After fertilization, various changes occur in ovaries and ovules. The ovary develops into the edible part of the plant which is the characteristic feature of angiosperm whereas ovules develop into an embryonic plant which is enclosed in a protective covering.
Complete answer:
As fertilization occurs, the zygote is formed which later develops into an embryo. The ovary develops into a fruit and the ovule develops into a seed after fertilization.
As the embryo develops, the fertilized ovule develops into a seed. A typical seed consists of a seed coat, endosperm, and embryo. The seed coat develops from the integuments of ovules. Its major function is to give protection to the embryo. The endosperm is a product of triple fusion and develops from the central cell of the embryo sack. It is generally a triploid tissue and provides reserve food material and nutrition to the developing embryo. Embryo gives rise to mature plants and maintains the continuity of the generation.
A Fruit is a ripened ovary. The wall of the ovary forms the fruit wall, also called the pericarp. Fruit may be true fruit or a false fruit or a parthenocarpic fruit.
Complete answer:
As fertilization occurs, the zygote is formed which later develops into an embryo. The ovary develops into a fruit and the ovule develops into a seed after fertilization.
As the embryo develops, the fertilized ovule develops into a seed. A typical seed consists of a seed coat, endosperm, and embryo. The seed coat develops from the integuments of ovules. Its major function is to give protection to the embryo. The endosperm is a product of triple fusion and develops from the central cell of the embryo sack. It is generally a triploid tissue and provides reserve food material and nutrition to the developing embryo. Embryo gives rise to mature plants and maintains the continuity of the generation.
A Fruit is a ripened ovary. The wall of the ovary forms the fruit wall, also called the pericarp. Fruit may be true fruit or a false fruit or a parthenocarpic fruit.
- True Fruit develops from the ovary. For example, mango.
- False Fruit develops from the floral part and thalamus along with the development of the ovary wall. For example, apples.
- Parthenocarpic fruits are the fruits that develop without fertilization. They are seedless and can also be produced with the help of growth hormones like auxins. For example, bananas.
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