Morphology of Flowering Plants Previous Year Questions — NEET Biology

3 past-year Morphology of Flowering Plants questions from NEET (Biology).

Q101 (2024)

Match List I with List II : <div style="overflow-x: auto; margin: 1rem 0;"><table style="width: 100%; border-collapse: collapse; text-align: left; font-size: 14px;"><thead><tr><th style="border: 1px solid #888; padding: 8px;"></th><th style="border: 1px solid #888; padding: 8px;">List I (Placentation)</th><th style="border: 1px solid #888; padding: 8px;"></th><th style="border: 1px solid #888; padding: 8px;">List II (Example)</th></tr></thead><tbody><tr><td style="border: 1px solid #888; padding: 8px;">A.</td><td style="border: 1px solid #888; padding: 8px;">Marginal</td><td style="border: 1px solid #888; padding: 8px;">I.</td><td style="border: 1px solid #888; padding: 8px;">Mustard</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">B.</td><td style="border: 1px solid #888; padding: 8px;">Axile</td><td style="border: 1px solid #888; padding: 8px;">II.</td><td style="border: 1px solid #888; padding: 8px;">Pea</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">C.</td><td style="border: 1px solid #888; padding: 8px;">Parietal</td><td style="border: 1px solid #888; padding: 8px;">III.</td><td style="border: 1px solid #888; padding: 8px;">Marigold</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">D.</td><td style="border: 1px solid #888; padding: 8px;">Basal</td><td style="border: 1px solid #888; padding: 8px;">IV.</td><td style="border: 1px solid #888; padding: 8px;">Lemon</td></tr></tbody></table></div> Choose the correct answer from the options given below :
  1. A-I, B-III, C-II, D-IV
  2. A-IV, B-II, C-I, D-III
  3. A-II, B-IV, C-I, D-III
  4. A-III, B-I, C-IV, D-II
### Related Formula Marginal $\rightarrow$ Pea; Axile $\rightarrow$ Lemon/Tomato/China Rose; Parietal $\rightarrow$ Mustard/Argemone; Basal $\rightarrow$ Marigold/Sunflower. ### Core Logic - Marginal placentation: Pea $\rightarrow$ II - Axile placentation: Lemon $\rightarrow$ IV - Parietal placentation: Mustard $\rightarrow$ I - Basal placentation: Marigold $\rightarrow$ III ### Step 1: Match Verification Sequence: A-II, B-IV, C-I, D-III. Option (3) is correct. ### Pattern Recognition Marginal = Pea (A-II). Basal = Marigold (D-III). Directly identifies option (3). ### Evaluation Rubric / Model Answer null ### Chapter Mix Class 11 Biology: Morphology of Flowering Plants

Q112 (2024)

In racemose inflorescence, ____.
  1. The main axis terminates in a flower
  2. The growth is limited
  3. Flowers are borne in an acropetal succession
  4. Flowers are solitary
### Related Formula Racemose: Continuous main axis growth, Acropetal floral arrangement. Cymose: Limited main axis growth (terminates in flower), Basipetal floral arrangement. ### Core Logic In racemose inflorescence, the main shoot axis continues to grow indefinitely and produces flowers laterally in an acropetal succession (older flowers at base, younger towards apex). ### Step 1: Selection Flowers are borne in an acropetal succession. Option (3) is correct. ### Pattern Recognition Racemose = Acropetal succession & indefinite axis growth. ### Evaluation Rubric / Model Answer null ### Chapter Mix Class 11 Biology: Morphology of Flowering Plants

Q133 (2024)

Which of the following floral formula is the correct floral formula of Solanaceae family?
  1. $\oplus \space \Phi \space K_{(5)} C_{(5)} A_5 \underline{G}_{(2)}$
  2. $\Phi \space K_5 C_{(5)} A_5 \underline{G}_{(2)}$
  3. $\oplus \space \Phi \space K_{(5)} C_{(5)} A_5 \underline{G}_{(2)}$
  4. $\Phi \space K_5 C_5 A_5 \underline{G}_{(2)}$
### Related Formula Solanaceae Floral Formula: $$\oplus \space \Phi \space K_{(5)} \overbrace{C_{(5)} A_5} \underline{G}_{(2)}$$ Actinomorphic, Bisexual, Gamosepalous (5), Gamopetalous (5), Epipetalous Stamens (5), Bicarpellary Syncarpous Superior Ovary. ### Core Logic Solanaceae flowers are actinomorphic ($\oplus$), bisexual ($\Phi$), with gamosepalous calyx $K_{(5)}$, gamopetalous corolla $C_{(5)}$, epipetalous stamens $A_5$, and bicarpellary syncarpous superior ovary $\underline{G}_{(2)}$. ### Step 1: Selection Option (1) represents the accurate floral formula. ### Pattern Recognition Solanaceae = $K_{(5)} C_{(5)} A_5 \underline{G}_{(2)}$ with epipetalous condition. ### Evaluation Rubric / Model Answer null ### Chapter Mix Class 11 Biology: Morphology of Flowering Plants
Rankbit System
JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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