NTA Abhyas NEET2020BotanyRespiration in PlantsPractice
Select the WRONG statement.
Options
- AWhen tripalmitin is used as a substrate in respiration, the RQ is 0.7 .
- BThe intermediate compound which links glycolysis with Krebs' cycle is malic acid.
- COne glucose molecule yields a net gain of 36 ATP molecules during aerobic respiration.
- DOne glucose molecule yields a net gain of 2 ATP molecules during fermentation.
Correct answer
B. The intermediate compound which links glycolysis with Krebs' cycle is malic acid.
Step-by-step solution
Tripalmitin is a fatty acid and the R.Q of fatty acids is around 0.7, therefore when it is used as a substrate in respiration the R.Q will be 0.7. Aerobic respiration involves both glycolysis and TCA cycle, therefore during aerobic respiration one glucose molecule will give a net gain of 36 ATP whereas during fermentation glucose is broken down into ethanol and lactic acid resulting in the formation of only 2 ATP molecules. Pyruvic acid is the intermediate compound which links glycolysis with Kreb's cycle.