Slide 1 of 2, Diagram showing solute concentration. ... going from low to high concentration is going against the concentration gradient; Next page. Diffusion. Previous page. Differentiation.

This takes place when molecules diffuse across the cell membrane by travelling through specific transport proteins. It occurs down a concentration gradient - molecules move from an area of high to ...

WHEN a concentration gradient in a vertical column of solution, for example, an ultracentrifuge cell, is investigated by a refraction method, it is desirable to obtain a diagram relating the ...

The resulting gradient diagrams show the number of components present, and their sedimentation velocities and concentrations can be accurately calculated. Nature - Observation of Ultracentrifugal ...