AMES, Iowa -- Earnesia Williams scored with 24 seconds left as Texas (No. 14 ESPN/USA Today, No. 13 AP) rallied to beat Iowa State (No. 20 ESPN/USA Today, No. 16 AP) 55-52 on Sunday and pick up its fifth straight win.Erika Arriaran scored 16 points to lead Texas (19-5, 7-3 Big 12) which snapped the Cyclones' four-game home winning streak against ranked opponents. Iowa State led 52-47 with 2:04 left before Arriaran hit a pair of jumper to pull the Longhorns within one. After a Texas stop, Williams' putback gave the Longhorns a 53-52 lead, and Iowa State lost the ball out of bounds with 11 seconds left. Carla Cortijo then hit two free throws, and Iowa State's Alison Lacey failed to get off a potential game-tying 3 as time expired. Texas's bench scored 39 points, led by Arriaran and Ashley Lindsey, who shot 6-of-9 from the field. Lacey had a game-high 19 points the Cyclones (18-6, 6-4), who led by as much as 11 late in the first half. Iowa State fell to 12-1 at home this season.