Fruit Development and Seed Dispersal — NEET Biology
📚 Practice ConceptAs ovules mature into seeds, the ovary develops into a fruit, i.e., the transformation of ovules into seeds and ovary into fruit proceeds simultaneously. The wall of the ovary develops into the wall of fruit called pericarp. The fruits may be fleshy as in guava, orange, mango, etc., or may be dry, as in groundnut, and mustard, etc. Many fruits have evolved mechanisms for dispersal of seeds. Recall the classification of fruits and their dispersal mechanisms that you have studied in an earlier class. Is there any relationship between number of ovules in an ovary and the number of seeds present in a fruit?
Which of the following statements concerning post-fertilisation changes in flowering plants are correct? S1: In angiosperms, the seed is the final product of sexual reproduction, forming inside fruits from the maturation of the ovule. S2: Albuminous seeds, like pea and groundnut, retain a part of the endosperm as it is not completely used up during embryo development. S3: The wall of the ovary develops into the pericarp, while the integuments of the ovule harden to form tough protective seed coats. S4: Parthenocarpic fruits, such as papaya, are generally seedless and are the result of fruit development without fertilisation. S5: In false fruits like apple and strawberry, the thalamus contributes to fruit formation, and their development occurs typically after fertilisation.
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