Which of the following molecules would be classified as an amino acid? Select all that apply. H₂N. о OH HO CH, CH, CH₂OH C=0 NH2 HN H₂N OH NH3 OH O= O-P-OCH₂ 0- HO. OH HO OH NH2 OH H Which of the amino acids below would be classified as hydrophobic? Select all correct answers. H H,N-C-C CH₂ I CH₂ S I CH, H H,N-C-C CH₂ OH H H,N-C-C CH CH, CH, H H,N-C-C=0 CH2 CH CH, CH, =0 H H,N-C-C --- =0 Which of the features below is characteristic of proteins?. Select all that apply. They have a wide variety of functions They only exist as single stranded polymers They often form barriers within the cell They are primarily used for storing and transferring information They are primarily hydrophobic They have a wide variety of structures