Flower Parts and Sexual Reproduction — NEET Biology
📚 Practice ConceptFlowers are the seat of sexual reproduction in angiosperms. In the flower, androecium consisting of stamens represents the male reproductive organs and gynoecium consisting of pistils represents the female reproductive organs.
Which of the above statements are correct? S1: All angiosperms invariably undergo sexual reproduction as a fundamental process for species continuation. S2: The aesthetic, ornamental, social, religious, and cultural values of flowers are their sole evolutionary purpose in nature. S3: To a biologist, flowers are complex structures where microsporangia and megasporangia develop, facilitating the production of male and female gametophytes. S4: The decision for a plant to flower, involving hormonal and structural changes, occurs simultaneously with the differentiation of reproductive structures like androecium and gynoecium. S5: Sexual reproduction in flowering plants is critical for creating new variants, thereby enhancing survival advantage, a concept also applicable to human reproduction.
View solution & NCERT explanation
Correct answer: A — S1, S3 and S5
The core concept relates to the fundamental nature and biological significance of flowers in sexual reproduction. S1: Correct. The NCERT states, "All flowering plants show sexual reproduction." This implies it is an invariable fundamental process for angiosperms. S2: Incorrect. While flowers hold aesthetic, ornamental, social, religious, and cultural value for humans, their primary evolutionary purpose in nature is sexual reproduction. S3: Correct. NCERT describes flowers as "morphological and embryological marvels and the sites of sexual reproduction." It elaborates on the development of male and female reproductive structures (androecium and gynoecium, containing microsporangia and megasporangia respectively) which lead to gamete formation. S4: Incorrect. The text states, "Much before the actual flower is seen on a plant, the decision that the plant is going to flower has taken place. Several hormonal and structural changes are initiated which lead to the differentiation and further development of the floral primordium. Inflorescences are formed which bear the floral buds and then the flowers. In the flower the male and female reproductive structures, the androecium and the gynoecium differentiate and develop." This indicates a sequence of events, not simultaneous occurrence of the decision to flower and differentiation of structures within the mature flower. S5: Correct. The introductory text to the unit states, "Sexual mode of reproduction enables creation of new variants, so that survival advantage is enhanced." This applies to flowering plants as well. Therefore, statements S1, S3, and S5 are correct.
What does NCERT say about Flowers are seat sexual?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.