Respiration in Plants Previous Year Questions — NEET Biology

2 past-year Respiration in Plants questions from NEET (Biology).

Q128 (2024)

Given equation: $$2(\mathrm{C}_{51}\mathrm{H}_{98}\mathrm{O}_6) + 145\mathrm{O}_2 \rightarrow 102\mathrm{CO}_2 + 98\mathrm{H}_2\mathrm{O} + \text{energy}$$ The Respiratory Quotient (RQ) of a biomolecule used for respiration, as per the above equation would be :
  1. Less than 0.5
  2. Between 0.5 and 0.95
  3. Between 1.25 and 2
  4. 1.0
### Related Formula $$\text{Respiratory Quotient (RQ)} = \frac{\text{Volume of } CO_2 \text{ evolved}}{\text{Volume of } O_2 \text{ consumed}}$$ ### Core Logic From the given reaction for tripalmitin: $$\text{RQ} = \frac{102 \text{ CO}_2}{145 \text{ O}_2} = 0.703 \approx 0.7$$ ### Step 1: Evaluation The value $0.7$ lies between $0.5$ and $0.95$. ### Pattern Recognition Tripalmitin (fat) $\text{RQ} = 0.7$. $0.7$ falls in range $[0.5, 0.95]$. ### Evaluation Rubric / Model Answer null ### Chapter Mix Class 11 Biology: Respiration in Plants

Q135 (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 (Process)</th><th style="border: 1px solid #888; padding: 8px;"></th><th style="border: 1px solid #888; padding: 8px;">List-II (Location)</th></tr></thead><tbody><tr><td style="border: 1px solid #888; padding: 8px;">A.</td><td style="border: 1px solid #888; padding: 8px;">Glycolysis</td><td style="border: 1px solid #888; padding: 8px;">I.</td><td style="border: 1px solid #888; padding: 8px;">Inner mitochondrial membrane</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">B.</td><td style="border: 1px solid #888; padding: 8px;">ETS</td><td style="border: 1px solid #888; padding: 8px;">II.</td><td style="border: 1px solid #888; padding: 8px;">Mitochondrial matrix</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">C.</td><td style="border: 1px solid #888; padding: 8px;">Accumulation of protons</td><td style="border: 1px solid #888; padding: 8px;">III.</td><td style="border: 1px solid #888; padding: 8px;">Cytoplasm</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">D.</td><td style="border: 1px solid #888; padding: 8px;">Krebs' cycle</td><td style="border: 1px solid #888; padding: 8px;">IV.</td><td style="border: 1px solid #888; padding: 8px;">Intermembrane space</td></tr></tbody></table></div> Choose the correct answer from the options given below:
  1. A-I, B-IV, C-III, D-II
  2. A-III, B-I, C-IV, D-II
  3. A-IV, B-II, C-I, D-III
  4. A-II, B-III, C-IV, D-I
### Related Formula Glycolysis $\rightarrow$ Cytoplasm ETS $\rightarrow$ Inner Mitochondrial Membrane Proton Accumulation $\rightarrow$ Intermembrane Space Krebs' Cycle $\rightarrow$ Mitochondrial Matrix ### Core Logic - Glycolysis: Cytoplasm $\rightarrow$ III - ETS (Electron Transport System): Inner mitochondrial membrane $\rightarrow$ I - Accumulation of protons: Intermembrane space $\rightarrow$ IV - Krebs' cycle: Mitochondrial matrix $\rightarrow$ II ### Step 1: Match Verification Sequence: A-III, B-I, C-IV, D-II. Correct option is (2). ### Pattern Recognition Glycolysis = Cytoplasm (A-III). Krebs cycle = Matrix (D-II). Matches option (2). ### Evaluation Rubric / Model Answer null ### Chapter Mix Class 11 Biology: Respiration in 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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