adjective inimical. Quotations. Pay attention to your enemies, for they are the first to discover your mistakes [Antisthenes]. You can discover what your enemy fears most by observing the means he uses to frighten you [Eric Hoffer The Passionate State of Mind ]. A man cannot be too careful in the choice of his enemies [Oscar Wilde Lady Windermere's Fan ].
A diffusion gradient, or concentration gradient, exists when an area of higher concentration is in contact with an area of lower concentration. When substances are in contact, particles may flow between them.he particles of a substance are in continuous, random motion in every direction, but there is a net flow of particles down the diffusion gradient or, in other words, from the area of higher concentration to the area of lower concentration.
As their concentration increases there (which is the same as saying that the pH decreases), a strong diffusion gradient is set up. The only exit for these protons is through the ATP synthase complex. As in chloroplasts, the energy released as these protons flow down their gradient is harnessed to the synthesis of ATP.The process is called chemiosmosis and is an example of facilitated diffusion. The gradient of protons formed across the inner membrane by this process of active transport forms a miniature battery. 2  The protons can flow back down this gradient only by reentering the matrix through ATP synthase, another complex (complex V) of 16 integral membrane proteins in the inner membrane.