Does a 7400 IC used as AND-gate use any power when output is 0?
A traditional 7400 series part will draw 12ma typical, 22ma max with all outputs low. (4ma typical to 8 ma max with all outputs high.)

74LS00 (low-power Schottky) ... 2.4ma typical, 4.4ma max.

74S00 (Schottky) ... 20ma typical, 36ma max. 

74HC00 (high speed CMOS) ... 2ua typical, 20ua max.