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Chapter 2.3: Biological Molecules - Proteins 4 года назад


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Chapter 2.3: Biological Molecules - Proteins

This video is the third section of AS Level Biological Molecules. It focuses on proteins, the structure of amino acids and how they come together through a condensation reaction to form a peptide bond, the different structures of proteins, their functions and some examples. In this video, I also mention the importance of haemoglobin referring specifically to its structure of having two alpha and two beta globin polypeptides. Each polypeptide has a haem group. Each haem group binds to an iron atom and each iron atom binds to an oxygen molecule. Note that one oxygen molecule has two atoms of oxygen, To end the video, I discuss collagen and its advantages.

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