Question

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21. FADH, is formed in conversion of:
a) Succinyl Co-A to succinic acid
c) Fumaric acid to malic acid
22. The last product of citric acid cycle is
b) succinic acid to fumaric acid
d) Isocitric acid to oxalosuccinic acid​

Answer 1

21: FADH is formed in conversion of succinic acid to fumaric acid
22. Last product of citric acid cycle is Oxaloacetic acid which is also the first member

Answer 2

Answer

In kreb's cycle, FADH₂ is formed in conversation of succinic acid to fumaric acid.

In oxidation - III, succinic acid and FAD converts to fumaric acid and FADH₂ with the help of succinic dehydrogenase.

$\sf succinic \: acid + FDH \xrightarrow{succinic \: dehydrogenase} Fumaric \: acid + FADH_2$

FADH means reduced flavin adenine dinucleotide. One molecule of FADH₂ produces 2 molecules of ATP.

The last product of citric acid cycle is two carbon dioxide molecules, one GTP, three NADH and one FADH₂.

Know more :

• Citric acid cycle is also known as Kreb's cycle or tricarboxylic acid cycle.
• This cycle was discovered by Hans krebs.
• Kreb's cycle occurs only under aerobic conditions.
• This is found in the matrix of Mitochondria which bis located in the inner membrane of the Mitochondria.