Reproductive Capacity in Flowering Plants — NEET Biology
📚 Practice ConceptAfter completing a brief account of sexual reproduction of flowering plants it would be worth attempting to comprehend the enormous reproductive capacity of some flowering plants by asking the following questions: How many eggs are present in an embryo sac? How many embryo sacs are present in an ovule? How many ovules are present in an ovary? How many ovaries are present in a typical flower? How many flowers are present on a tree? And so on...
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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