What is the difference between fad and fadh2

FAD, along with proteins, form flavoproteins. There are two joined nucleotides in NADH: adenine and nicotinamide while FADH 2 contains the two joined nucleotides adenine and flavine mononucleotide.

Berg, Jeremy M. National Library of Medicine, 1 Jan. Overview and Key Difference 2. What is NADH 3. What is FADH2 4. The melting point of NADH is But the deficiency of the essential vitamin Niacin can cause a decrease in the composition of NADH in the body. NADH is produced in the cytosol as well as in the mitochondria. In commercial applications, NADH is administered orally in order to combat fatigue as well as during energy deprived syndromes and metabolic disorders.

FADH is involved in both carbohydrate metabolism and fatty acid metabolism. FADH is generated in each round of fatty acid oxidation, and the fatty acyl chain is shortened by two carbon atoms as a result of these reactions to yield Acetyl Co A. This shifting of the protein shape ultimately allows for things like muscle contraction, cell mobility, membrane transport, and enzyme action. Cells and life exist only if a consistent and steady supply of ATP is available.

The image above is a representation of the chemical structure of ATP. ATP includes a nitrogenous base called adenine joined to a 5 carbon sugar called ribose and 3 phosphate groups. ATP is used to phosphorylate a protein. An enzyme, called a kinase not shown removes a phosphate from ATP and facilitates a bond between the phosphate and some other protein. The bonding of a phosphate to a protein in this manner is called phosphorylation. The phosphate bone with the protein has higher energy.

Notice that phosphorylation uses this energy to cause a conformational change of the protein shape. It is often stated that these compounds are electron carriers because they accept electrons become reduced during catabolic steps in the breakdown of organic molecules such as carbohydrates and lipids. Then, these reduced coenzymes can donate these electrons to some other biochemical reaction normally involved in a process that is anabolic like the synthesis of ATP.