Which of the following statements is correct
选项:
A:The amino acids in proteins are all L-type, and some antibiotics or microorganisms have D-type amino acids in their cell walls.;
B:Protein molecules have maximum UV absorption at 260nm;
C:The alpha carbon of an amino acid is an asymmetric carbon (except glycine) atom;
D:Tryptophan, tyrosine and phenylalanine can absorb ultraviolet light
发布时间:2024-06-26 16:35:15