Answer
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Work Step by Step
(1) Similarity between membrane potential and electrochemical gradient is that they both involve the movement of ions across the cell membrane.
(2) Difference between membrane potential and electrochemical gradient is . membrane potential- is the difference in electrical charge across the cell membrane. Its also produced by the separation of charge across the cell membrane, which is brought about by ions moving across the membrane, especially sodium (Na+) and potassium (K+) ions.
electrochemical gradient - is the combined effect of both the electrical and chemical gradients that drive the movement of ions across the membrane .also takes into account both the electrical charge difference and the concentration gradient of the ions across the membrane.