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The biological molecules or Biomolecules are involved in metabolic activities of living bodies such as plants and animals. They are usually polymers or macromolecules which are composed by the polymerisation of monomer units. For example, proteins are composed of amino acids which are bonded with each other through peptide linkage.

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Biological macromolecules Study Sets and Flashcards | Quizlet

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Quizlet provides Biological macromolecules activities, flashcards and games. Start learning today for free!

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As food travels through the digestive system, it is exposed to a variety of pH levels. The stomach has a pH of 2 due to the presence of hydrochloride acid (HCl), and the small intestine has a pH ranging from 7 to 9. HCl converts pepsinogen into pepsin, an enzyme that digests proteins in the stomach.

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SC.912.L.18.1 - Describe the basic molecular structures and primary functions of the four major categories of biological macromolecules.