Question

protiens are invariably

Answer 1

Answer:

Proteins, carbohydrates and lipids are made from three basic molecules: carbon, hydrogen and oxygen. However, all proteins contain an element not found in carbohydrates and lipids is nitrogen. Nitrogen which is present in all amino acids (the building blocks that make up the protein chains).

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Answer 2

Answer:

Morever , proteins in all organisms are invariably composed of the same set of 20 amnio acids. Hemoglobin , in contrast is made up of four chains two identical chains consisting of 141 amino acids and other two identical chains consisting of 146 amino acids .