For general help, questions, and suggestions, try our dedicated support forums. lands on the stigma of a flower of the correct species, a pollen tube begins to grow. When you eat the flesh of a fruit, like an apple or a watermelon, you are eating the ovary of the flower. Fruits and Seeds. ... ISC Previous Year Question Papers class 12 When a pollen grain. It restores the diploid condition by fusion of haploid male and female gametes. Wind dispersed seeds and fruits have a variety of adaptations which help them to be carried away by wind. Light seeds: Seeds of some plants are sufficiently light and minute in size to easily carry away to great distance by air currents.(E.g. The key difference between fruit and seed is that fruit is the developed ovary of angiosperms after fertilization while seed is a fertilized ovule of plants.. Pollination is the process of transferring pollen from anthers to the stigma of the flowers. In a few species, a special mechanism has evolved to produce seed and fruit. If you need to contact the Course-Notes.Org web … Explore more: Significance of Seeds and Fruits Formation. Factors Affecting Seed Germination. The seed can remain dormant until conditions are suitable for the embryo to begin growing. These include: External Factors. Biology Notes Class XII As Per CBSE (NCERT) Books Chapter Wise-Notes PDF ( Board Level ) ... post fertilization events-development of endosperm and embryo, development of seed and formation of fruit; Special modes-apomixis, parthenocarpy, polyembryony; Significance of seed dispersal and fruit formation. The fruits and seeds with specialized devices which may be in the form of spongy and fibrous outer walls as in coconut and spongy thalamus as in lotus, ... Class 12. Seeds are a protective structure that lets a plant embryo survive for long periods of time before it germinates. It results in the formation of diploid zygote, which develops into an embryo and gives rise to a new plant. Advantages of seed formation in plants: Seeds provide a protective coat so that the embryo plant can develop when it finds a nice piece of soil. Significance of double fertilization is as follows: It gives stimulus to the plant due to which ovary develops into fruit and ovules develop into seeds. A fruit is an important and characteristic element of the plants, especially angiosperms. Water: The poor or additional supply of water affects the seed germination. Fruit and Seed Formation Without Fertilization. Temperature: This affects the growth rate as well as the metabolism of the seed. One or more flower takes part in the formation of fruit. There are some major factors that affect seed germination. If you're having any problems, or would like to give some feedback, we'd love to hear from you. Class 5 Class 6 Class 7 Class 8 Class 9 Class 10 Class 11 Class 12. 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