The molecule or ion cross the membrane with the energy provided by ATP as it moves up the concentration gradient.
"You leave your cares behind" is active voice.
malonocytes
The pairing mechanism behind high-temperature superconductivity is the ability of certain materials to conduct electricity with zero electrical resistance.
the transfer case
roads
Although the exact cause of ADHD is not known, an imbalance of certain neurotransmitters, the chemicals in the brain that transmit messages between nerve cells, is believed to be the mechanism behind ADHD symptoms
D, ily Plato
it needs electricity......
Donkey behind bars.
Aqueducts
great rack and savage behind
behind the drivers side seat belt mechanism :P