Rangers stretched their lead at the top of the SWPL to five points after earning a narrow win at Motherwell.
The hosts frustrated the league leaders until the 57th minute, but Lizzie Arnot found the decisive goal when she the fired in Brogan Hay's back-post cross.
In the Scottish Women's Cup, Celtic progressed to the last four with a 2-0 quarter-final win away to Aberdeen.
Shen Mengyu fired in a fine first-half opener before Jodie Bartle headed in a second after the break.
Fran Alonso's side will join Glasgow City, Hearts and Partick Thistle in the semi-finals after all three clubs secured passage with quarter-final victories over Stirling University, Kilmarnock and Hibernian respectively.