The types of muscle proteins in a pork chop and a beef ribeye (both are lion muscles) are so different because pigs eat primarily starch while steers ear primarily fiber.

The first enzyme that is needed for the first step of glycolysis pathway is ______________.

Nutrition research had discovered that the trans-fat (or trans fatty acids) possess a lot of beneficial effects on human health.

Which one of the following vitamins is not a fat soluble vitamin?(A) Vitamin A(B) Vitamin C(C) Vitamin D(D) Vitamin E(E) Vitamin K

Which one of the following amino acid transport system is responsible for the small intestinal absorption of the cationic amino acids? 

The vitamin B family mainly function as co-enzymes for many biochemical reactions to produce energy.

Which one or more of the following vitamins is/are known as “anti-hemorrhagic vitamin(s)”?(A) Vitamin A(B) Vitamin C(C) Vitamin D(D) Vitamin E(E) Vitamin K(F) The first two vitamins on the list(G) The last two vitamins on the list

Which vitamin takes part in animal blood clotting process?(A) Vitamin A(B) Vitamin K(C) Vitamin E(D) Vitamin D(E) Vitamin B

It is the sequence of amino acids (including their chemical properties) that determines the structure of the protein and, in turn, the protein properties & protein functions.

A protein polypeptide chain can fold into a coiled alpha-helix and/or a pleated beta-sheet that forms one or more of the following levels of protein structure.