Floral Parts After Fertilisation Explained

Understanding the changes in floral parts post-fertilisation is crucial in botany. Fertilisation triggers specific developments that lead to seed and fruit formation.

Analysis of Post-Fertilisation Changes

Let's examine how the key floral parts, specifically the ovary and ovule, transform after successful fertilisation:

• Option 1 Analysis: This is incorrect because the stigma, the receptive tip of the carpel, typically withers after pollination and doesn't usually develop into the fruit.
• Option 2 Analysis: This is incorrect. While some accessory parts might form part of the fruit (like the receptacle in an apple), generally, most floral parts like petals and sepals wither and fall off after fertilisation. They do not all develop into the fruit.
• Option 3 Analysis: This correctly describes the typical post-fertilisation process. Following fertilisation, the plant ovary matures and develops into the protective structure enclosing the seed, which is the fruit. Inside the ovary, the fertilised ovules develop into seeds. This is the standard biological outcome.
• Option 4 Analysis: This is incorrect as it reverses the roles. The ovule develops into the seed, not the fruit, and the ovary develops into the fruit, not the seed.

Conclusion on Floral Changes

The established botanical process confirms that after fertilisation:

• The ovary matures and develops into the fruit.
• The ovule(s) within the ovary mature and develop into the seed(s).

Therefore, the statement that the ovary develops into a fruit while the ovule becomes a seed accurately represents the changes in floral parts after fertilisation.