Explain the General Features of α-Amino Acids ?

Draw the structural formula for the amino acids glutamine and valine. Circle the amino acid groups, carboxyl acid group, and the variable group

A protein's polypeptide chain. O primary secondary tertiary O quaternary structure contains helixes and sheets that result from hydrogen bonding between carboxyl and amino groups of the both secondary and quaternary

Lanthionine is a nonstandard amino acid consisting of two alanine residues linked via their β carbon atoms by a thioether (—S—) linkage. Draw the structure of lanthionine.

Draw the structure of the short protein: glutamate-leucine-serine.

Identify TWO lipids that are likely to be liquids at room temperature

Which is an essential amino acid for infants and children due to their rapid growth? Glutamine Arginine Proline Alanine

Draw the chemical structure and give the one and three letter symbols for an amino acid fitting each of these descriptions: Has a positive charge at pH 7.0       Has a neutral charge at pH 7.0       Contains 3 nitrogen atoms       Contains an aromatic ring       Contains an alcohol group which is NOT part of a carboxylic acid group

Draw and name the type of bond that forms between amino and carboxyl groups in peptides.

The linkages shown in circles "A" and "B" are what kind of linkages? In other words, what is the general term for the linkages that hold sugar monomers together? CH₂OH R Peptide bonds Ester bonds O Glycosidic Bonds O Amide bonds OH CH₂OH OH OH CH₂ A B КОН (NHCOCH