biological molecules protein Flashcards
what is a protein
very big macromolecules with a structural function at times
where is protein
in bones, tendons,nails,hair and membrane
what is the basic building block of protein
amino acid
how many amino acid groups are there and what’s the difference
20 and the r group is the only difference
how are amino acids joined
peptide bonds
what is 2 amino acids
dipepide
3-75 amino acids
polypeptide
more than 75 amino acids
is a protein
what are the structural levels of protein
primary structure, secondary structure and tertiary structure and quaternary
what is primary structure
a chain of amino acids joined by peptide bonds
what is secondary structure
building upon primary but had hydrogen bonds
what are the two secondary structures
alpha helix and beta pleated sheet
what is an alpha helix
a chain that is wound up
what is a beta pleated sheet
looks like an accordion
what is a tertiary structure
3d shape that build from secondary
