1 A unit-quantity of electricity used as a measure of the amount of electrical charge that may be obtained from a storage battery before it requires recharging. 2  Ampere-Hour Capacity -- The number of ampere-hours which can be delivered by a storage battery on a single discharge.
A: Bacteria obtain energy by either ingesting other organisms and organic compounds or by producing their own food. The bacteria that produce their own food are called autotrophs. Bacteria that must consume other organic molecules for energy are called heterotrophs.
Autotrophic bacteria make food in one of 2 ways. 1.capture and use the sun's energy (plants) 2.use the energy from chemical substances in their environment (bacteria that live in the mud) Other bacteria are heterotrophs and cannot make their own food.