??? ????? ??????? ??????? (?? ???????? : Frederick Gowland Hopkins? ?????????? ??? ????????? ???? ? ?????? ??? ?????? ????) [?] ????? ? ????????? ????? ????????? ???. ???? ???? ?????? ????? ?? ????? ?????? ?? ?????? ????? ????????? ???????? ???????? ???? ?? ??????? ????? ????? ??????? ???????? ?????? [?]