NTA Abhyas NEET2020BotanyRespiration in PlantsPractice
In a TCA cycle, how many NADH 2 and FADH 2 are produced, respectively?
Options
- A3 NADH 2 , 1 FADH 2
- B2 NADH 2 , 1 FADH 2
- C4 NADH 2 , 1 FADH 2
- D4 NADH 2 , 2 FADH 2
Correct answer
A. 3 NADH 2 , 1 FADH 2
Step-by-step solution
The tricarboxylic acid (TCA) cycle, also known as the Kreb's or citric acid cycle, is the main source of energy for cells and an important part of aerobic respiration. The cycle harnesses the available chemical energy of acetyl coenzyme A (acetyl CoA) into the reducing power of NADH 2 and FADH 2 . Each molecule of acetyl CoA produces 3 NADH 2 and 1 FADH 2 .