Which of the following food-stuffs contains nitrogen?
Carbohydrates
fats
Proteins
None of these
C.
Proteins
The general fomula for carbohydrates is Cx (H2O)y. Thus, carbohydrates do not have nitrogen. Proteins are polymers of amino acids and all amino acids contain NH2 group. Thus, nitrogen is present in proteins. Fats are triesters of glycerol, hence they also do not contain nitrogen.
Which of the following statements is true?
Denaturation of protein changes the primary structure of protein
All proteins act as biocatalyst
C-terminal amino acid in proteins is determined by Edman degradation
The pleated sheet structure of proteins was determined by Pauling
