B. Radiologist
Happy to help :)
The simple answer is that in a battery the chemical reactions that produce the electrical current are produced from materials that are already in the battery itself, whereas in a fuel cell, the reactants, almost always Hydrogen and Oxygen are fed to the cell like an external fuel.
. However, while a battery makes electricity from the energy it has stored inside the battery, a fuel cell makes its electricity from fuel in an external fuel tank This means that while a battery may run dead, a fuel cell will make electricity as long as fuel is supplied. For hydrogen fuel cells, hydrogen is the fuel and it's stored in a tank connected to the fuel cell. When hydrogen in the tank runs low, you refill it, or replace it with a full tank.
Is their possibly a chart that accompanies this question, or is that it?
I believe the corre term to fill in the blank is "a protein gradient." Chemiosmosis uses a protein gradient to supply the energy necessary to phosphorylate adp to atp. It<span> is the diffusion of hydrogen ions (protons) across the biological membrane via the ATP synthase.</span>
The answer to this question is:
✔️1). I: _Tired Tread_ D: _Baking Distance_ C:_Type of Car_
✔️2). I: _Running Speed_ D: _Time to run a mile_ C:_Terran_
✔️6). I: _Fertilizer Used__ D: _Potatoes Grown_ C:_Sunlight, Type of fertilizer_
✔️7). I: _Death Measured_ D: _Temperature of Water_ C:_Location of Msmt_
✔️8). I: _Type Of Gasoline_ D: _Amount of pollution_ C:_Type of Car_
<span>✔️</span>9). I: _The amount of Vitamin A_ D: _Mass of rat_ C:_Food Consumed, Caged Sized_
Hoped This Helped, <span>
Theweeknd14
Your Welcome :) </span>