Question

Statement When is this true? 1. Orange dye moves independently of purple dye. never 2. Concentration gradients exist that drive diffusion of both dyes. always 3. There is a net movement of orange dye from side A to side B. only before gulbrum is renched 4. Purple dye moves only from side to side A only at equilibrium 5. There is no net movement of purple dye. A membrane permeable to both dyesi initial condition final condition (equilibrium)

Answer 1

The orange dye moves independently of purple dye is true and concentration gradients exist that drive diffusion of both dyes is also true.

There is a net movement of orange dye from side A to side Only before equilibrium is reached so it is true.

Purple dye moves only from side B lo side A is false.

There is no net movement of purple dye is true.

What is diffusion?

The net movement of anything from a location of higher concentration to a region of lower concentration is known as diffusion. A gradient in the Gibbs free energy or chemical potential drives diffusion. As in spinodal decomposition, it is possible for molecules to diffuse "uphill" from a region of lower concentration to one of higher concentration.

Why does diffusion happen?

The molecules' kinetic energy causes random motion, which causes diffusion. This process happens in simple diffusion without the help of a transport protein.

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