compounds and functional groups that contain basic nitrogen atoms with a lone pair. an amino

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BIOS 195 Week 2

• amine group

–Answer compounds and functional groups that contain basic nitrogen atoms with a lone pair. an amino acid is an amine group

• hydroxyl group

–Answer consisting of an oxygen atom with two lone pairs bonded to a hydrogen (OH)

• carboxylic acid group

–Answer R-COOH, contains a carboxyl group attached to an R-group

• hydrophilic

–Answer water loving, mixes with or dissolves in waterpolar fully or partially charged

• hydrophobic

–Answer water fearing, repel or fails to mix with water non-polar fully uncharged

• amino acid

–Answer molecules that combine to form proteins, they are the building blocks (monomers - amino acids)

• peptide bond

–Answer 1 / 2

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The chemical bond that forms between the carboxyl group of one amino acid and the amino group of another amino acid (C and N bond)

• polypeptide

–Answer A polymer (chain) of many amino acids linked together by peptide bonds. forms part of a protein molecule

• protein

–Answer

• complex molecules called polypeptides
• made up of a series of amino acids
• bound together by peptide bonds
• primary structure

–Answer linear sequence of amino acids

• amino (N) terminus

–Answer the end of a peptide with a free amino group (H2N)

• carboxyl (C) terminus

–Answer the end of peptide with a free carboxyl group (OH)

• polymer

–Answer A long molecule consisting of many similar or identical monomers linked together.

• secondary structure

–Answer alpha helix and beta sheets.formally defined by the pattern of hydrogen bonds between the amino hydrogen and carboxyl oxygen atoms in the peptide backbone.

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