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Q.
At how many places in Krebs cycle, FADH2 is/are formed?
NTA AbhyasNTA Abhyas 2020Respiration in Plants
Solution:
In Krebs cycle, dehydrogenation reaction occurs four times; among which there are three points in the cycle where $\text{NAD}^{+}$ is reduced to $\text{NADH}^{+}\text{H}^{+}$ and one point where $\text{FAD}^{+}$ is reduced to $\text{FADH}_{2}$ when succinate is converted to fumarate.