How many net ATP molecules are produced from one FADH2 molecule after a complete Electron Transport Chain?

Which one of the following amino acids is not an essential amino acid? 

Vitamin C is one of the very important metabolic antioxidants for the animal.

The Urea Cycle for ammonia detoxification in the body involves the following amino acids:

Which one of the following amino acids is a non-proteinogenic amino acid that plays a role in the urea cycle?

Besides acetyl Co-enzyme A and NADH, another important final product of the pyruvate dehydrogenase pathway is __________________. Pyruvate Co-enzyme A Citric acid FADH2 CO2

Which one of the following polysaccharides does not have 6 carbon sugar units in its molecule?

Which one of the following amino acids is an aromatic amino acid?

Which one of the following formulas represents a tetrasaccharide molecule? C3H6O3-C3H6O3-C3H6O3 C4H8O4 C5H10O5 C6H12O6-C6H12O6-C6H12O6-C6H12O6 C7H14O7

Through laboratory analysis, we learned that the nitrogen content of a poultry diet is 4.0%. Please tell me the crude protein content (%) of this diet is roughly ____________.A. 14.5%B. 26.6%C. 25.0%D. 18.8%E. 12.0%