NTA Abhyas NEET2020BotanyRespiration in PlantsPractice
In which of the following steps of aerobic respiration of glucose, carbon dioxide is evolved? I. Glycolysis II. Link reaction III. Krebs cycle IV. Electron transport system
Options
- AI and II
- BI, II and III
- CII, III and IV
- DII and III
Correct answer
D. II and III
Step-by-step solution
In the link reaction pyruvic acid is converted into acetyl coenzyme A also producing reduced coenzyme NADPH + H + and carbon dioxide in the presence of enzyme pyruvate dehydrogenase. In the Kreb's cycle, carbon dioxide is evolved at two points: a. During the conversion of isocitric acid to oxalosuccinic acid. b. During the conversion of alpha-ketoglutaric acid to succinyl co-A