protein flash cards

Pregunta	Respuesta
amino acid structure amino group carboxyl group R group hydrogen atom	Image: amino_acid (image/jpg)
peptide bonds	amino group and carboxyl group condensation reaction H2O is removed so carbon and nitrogen joined by a peptide bond
primary structure	order and sequence of amino acids (almost limitless) determines its ultimate shape
secondary structure	primary structure effects how is twists up. hydrogen bonds hold the 3D shape in a alpha helix
tertiary structure	alpha helix coils up more= complex and unique structure with different bonds: disulfite bonds(strongest), ionic bonds, covalent bonds and hydrogen bonds(weakest)
quaternary structure	complex molecule of number of individual polypeptide chains linked together. along with 'prosthetic groups'(haem in hemoglobin-4 polypeptide bonds)
test for protein	add sodium hydroxide to sample at room temp. add few drops of copper sulfate solution(biuret solution) if it turns purple=peptide bonds=protein.

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	Creado por jazzballet hace más de 10 años