Blatant Biology

cysteine, threonine, serine, tyrosine, asparagine, glutamine

acidic amino acid with a carboxylic acid and 1 methylene bridge making up its side chain

acidic amino acid, with a carboxylic acid at the end of a 2 carbon hydrocarbon chain

positively charged amino acid with a partially protonated imidazole group on its side chain

1,3-C3N2 ring, found in many biological molecules (including histidine)

orbital hybridisation forming a trigonal planar molecular geometry, allowing the formation of 1 pi bond and 3 sigma bonds per carbon

orbital hybridisation forming a tetrahedral molecular geometry, forming four equal sigma bonds

diagrams showing bonding between atoms of a molecule, and lone electron pairs

the covalent view of chemical bonding, assigning a hypothetical charge to an atom in a molecule, assuming all electrons are equally shared within the bonds (regardless of electronegativity)

a molecular structure where different bond arrangements can form, without changing the arrangement of the atoms

an electron system where pi bonds are distributed across multiple bonds in the molecule, forming multiple bonds with partial double bond character (as seen in benzene, ...)