<span>Cytosis requires energy, and the production of energy depends on oxygen. Diffusion does not require energy.</span>
In everyday use, theory is used to mean a guess or idea about how something works. In science we would call that a hypothesis not a theory. A scientific theory is a well sustained proposal or explanation based on facts that have been repeatedly confirmed through experiments and observations. To sum up, a theory in the real world is basically a guess, and a theory in the science world is a well though out plan that has been tested and a more intact thought.
Explanation:
The SI standard unit of electrical charge is the
coulomb
, represented by the (C) symbol.
One coulomb is the amount of electric charge transported in one second by a steady current of one ampere. One coulomb is also the amount of charge stored by a capacitance of one farad charged to a potential difference of one volt.