Centuries: 9th century - 10th century - 11th century
Decades: 870s - 880s - 890s - 900s - 910s - 920s - 930s - 940s - 950s - 960s -- 970s
Years: 920 921 922 923 924 925 926 927 928 929
... transfer from the primary acceptor to plastoquinone, then to plastocyanin, producing proton-motive force as with cyclic electron flow and driving ATP ...