Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETBotanyRespiration in Plants

During the complete aerobic respiration of tripalmitin, what is the exact ratio of the number of molecules of CO₂ evolved to the number of molecules of O₂ consumed, and what is the corresponding Respiratory Quotient (RQ)?

Options

  1. A145 102 and 1.4
  2. B98 145 and 0.68
  3. C102 145 and 0.7
  4. D102 98 and 1.04

Correct answer

C. 102 145 and 0.7

Step-by-step solution

The Respiratory Quotient (RQ) is the ratio of the volume of CO₂ evolved to the volume of O₂ consumed. For the complete aerobic respiration of the fat tripalmitin ( C₅₁H₉₈O₆ ), the balanced chemical equation as given in NCERT is: 2(C₅₁H₉₈O₆) + 145 O₂ 102 CO₂ + 98 H₂O + energy From the stoichiometry of the reaction, 102 molecules of CO₂ are evolved for every 145 molecules of O₂ consumed. Therefore, the ratio is 102 145 . Calculating the RQ: RQ = 102 145 0.7 Option 1 is incorrect as it represents the inverted ratio (

Practice Respiration in Plants on Quantrex Academy →

More from Respiration in Plants

How many molecules of pyruvic acid are produced at the end of glycolysis from 206 molecules of glucose ? 20262 ( C ₅₁ H ₉₈ C ₆) + 145 O ₂ 102 CO ₂ + 98 H ₂ O + energy The Respiratory Quotient (RQ) of a biomolecule, used for respiration, as per the above equation would be : 2026Match List I with List II : List I (Process) List II (Location) A. Glycolysis I. Inner mitochondrial membrane B. ETS II. Mitochondrial matrix C. Accumulation of protons III. Cytopl 2026The complex II of mitochondrial electron transport chain is also known as 2025Identify the step in tricarboxylic acid cycle, which does not involve oxidation of substrate. 2024Match List-I with List-II : array llll List-I & & List-II . & ETS Complex I & I. & NADH Dehydrogenase . & ETS Complex II & II. & Cytochrome bC ₁ . & ETS Complex III & III. & Cytoch 2024Match List I with List II array |l|l|c|l| & List I & & List II A. & Citric acid cycle & I. & Cytoplasm B. & Glycolysis & II. & Mitochondrial matrix C. & Electron transport system & 2024Which of the following are correct about cellular respiration? A. Cellular respiration is the breaking of C - C bonds of complex organic molecules by oxidation. B. The entire cellu 2024 Full Respiration in Plants list All NEET PYQs