The Flower — NEET Biology MCQs with Solutions
Free NEET Biology The Flower MCQs with step-by-step solutions (6 questions). Part of Morphology of Flowering Plants. Practise online on Prepizo — no login needed.
▶ Practise The Flower online (free)
Questions with solutions
Q1 — The Flower · easy · theory
A flower that can be divided into two equal halves by only ONE plane is:
A. Zygomorphic ✓ Correct
B. Trimerous
C. Actinomorphic
D. Asymmetric
Solution: Zygomorphic (e.g. pea, Cassia) = bilateral; actinomorphic (e.g. mustard, Datura) = radial.
Q2 — The Flower · easy · theory
The arrangement of ovules within the ovary is called:
A. Placentation ✓ Correct
B. Vernation
C. Aestivation
D. Phyllotaxy
Solution: Placentation types: marginal, axile, parietal, basal, free-central, superficial.
Q3 — The Flower · medium · theory
The mode of arrangement of sepals or petals in a floral bud is termed:
A. Aestivation ✓ Correct
B. Placentation
C. Phyllotaxy
D. Venation
Solution: Aestivation types include valvate, twisted, imbricate and vexillary.
Q4 — The Flower · medium · theory
Axile placentation, in which the placenta is axial and ovules attach to it in a multilocular ovary, is seen in:
A. Pea (marginal)
B. Mustard (parietal)
C. China rose, tomato, lemon ✓ Correct
D. Sunflower (basal)
Solution: Axile placentation occurs in China rose, tomato and lemon; marginal in pea, parietal in mustard, basal in sunflower.
Q5 — The Flower · hard · theory
A flower with the ovary situated ABOVE the other floral parts (which arise below it) is:
A. Half-inferior
B. Perigynous
C. Epigynous (inferior ovary)
D. Hypogynous (superior ovary) ✓ Correct
Solution: Hypogynous = superior ovary (e.g. mustard, China rose); epigynous = inferior ovary (e.g. guava, cucumber).
Q6 — The Flower · hard · theory
Vexillary (papilionaceous) aestivation, characteristic of the pea flower, has:
A. Valvate sepals
B. No overlap of petals
C. A large standard petal overlapping two wings, which overlap the two keel petals ✓ Correct
D. Five equal twisted petals
Solution: The pea corolla shows vexillary aestivation: standard (vexillum) → wings → keel — a diagnostic Fabaceae feature.