The supply of hydrogen ions will also depend upon their concentration, i.e. the pH of the electrolyte. A concentration gradient in the electrolyte is illustrated. ·If the electrolyte is unstirred, the ...

It occurs down a concentration gradient - molecules move from an area of high to lower concentration. This does not require a supply of energy because diffusion is a spontaneous process.

Pure water has the highest water concentration. A concentration gradient exists when there is a region of high concentration leading to a region of low concentration: ...

Thus, gene expression is vital to the effectiveness of the gradient in specifying different ... As you can see, Dpp was found in its strongest concentration (visualized as the brightest green ...

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