The first enzyme that is needed for the first step of TCA cycle is ________________. 

Pyruvate dehydrogenase pathway takes place in cytoplasm, and therefore, no oxygen (O2) is required (anaerobic condition).

Besides ATP, CO2, and NADH, another important final product of the glycolysis pathway is: 

Carbohydrates do not include:

Rumen microbial enzymes can digest dietary fiber to generate the following short chain fatty acid(s).

For digestion and absorption of nutrients, the most active portion of the pig’s digestive tract is in the _____.

The nitrogen content in a protein on average is about _________.

Which of the following nutrients can be synthesized by the ruminal bacteria?

A homo-polysaccharide with the main chain being alpha-glucoses linked by alpha 1-4 glycosidic bonds. After every 7 to 10 glucose residues on the main chain there branched out a side chain that is linked to the main chain by an alpha 1-6 glycosidic bond.  What is this polysaccharide? Starch Glycogen Amylopectin Cellulose Hemicellulose

Which one of the following amino acids is an aromatic amino acid?(A)   Lysine(B)   Histidine(C)  Threonine(D)  Phenylalanine (E)   Methionine