IB Biology B1.2 Definitions

This page contains our IB Biology definitions for B1.2. By learning each one of these definitions, you will fully cover the content for IB Biology 'Further proteins'.
amino acid

The building block of proteins

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conjugated protein

Proteins with prosthetic groups, often a heme group

hydrogen bonding

The strongest intermolecular force that only occurs between hydrogen and oxygen, nitrogen, or fluorine

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integral protein

A protein embedded in the plasma membrane

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ionic bond

The electrostatic attraction between oppositely charged ions

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peptide bond

The chemical bonds that link amino acids together in a polypeptide chain

polypeptide

A chain of many amino acids bound together by peptide bonds

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