Semi-Technical Description & Floral Formula — NEET Biology MCQs with Solutions
Free NEET Biology Semi-Technical Description & Floral Formula MCQs with step-by-step solutions (6 questions). Part of Morphology of Flowering Plants. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Semi-Technical Description & Floral Formula · easy · theory
In a floral diagram/formula, the symbol "⊕" represents a flower that is:
A. Unisexual male
B. Actinomorphic (radially symmetrical) ✓ Correct
C. Bisexual only
D. Zygomorphic
Solution: ⊕ denotes actinomorphic symmetry; % (or a curved arrow) denotes zygomorphic.
Q2 — Semi-Technical Description & Floral Formula · easy · theory
In a floral formula, the symbol "K" stands for the:
A. Gynoecium
B. Androecium
C. Corolla
D. Calyx (sepals) ✓ Correct
Solution: K = calyx, C = corolla, A = androecium, G = gynoecium; P = perianth (when calyx and corolla are alike).
Q3 — Semi-Technical Description & Floral Formula · medium · theory
A bracket around the number of members of a whorl in a floral formula indicates that the members are:
A. Whorled
B. Absent
C. Free
D. Fused (connate) ✓ Correct
Solution: A bracket shows fusion (cohesion) within a whorl; a line above G indicates a superior ovary.
Q4 — Semi-Technical Description & Floral Formula · medium · theory
In a floral formula, a line drawn ABOVE the gynoecium symbol G indicates:
A. A superior ovary (hypogynous flower) ✓ Correct
B. An inferior ovary
C. Fused carpels
D. A unisexual flower
Solution: A line above G = superior ovary; a line below G = inferior ovary.
Q5 — Semi-Technical Description & Floral Formula · hard · theory
The floral formula ⊕ K(5) C(5) A5 G(2) with a superior ovary is typical of:
A. Fabaceae
B. Poaceae
C. Liliaceae
D. Solanaceae (e.g. Datura, tomato) ✓ Correct
Solution: Fused calyx and corolla (5 each), 5 epipetalous stamens, bicarpellary syncarpous superior ovary — Solanaceae.
Q6 — Semi-Technical Description & Floral Formula · hard · theory
The symbol "P" is used in a floral formula when:
A. The flower is bisexual
B. The ovary is inferior
C. Stamens are fused
D. The calyx and corolla are not distinct (perianth of tepals) ✓ Correct
Solution: When sepals and petals are indistinguishable (e.g. Liliaceae), the whorl is the perianth (P) of tepals.