How will the distribution of molecules occur when diffusion is complete in a solution?Multiple ChoiceThere will be a high concentration of molecules in a localized part of the solution.The molecules will dissolve; they will no longer be present in the solution.The molecules will be distributed evenly in a solution.

Which of the following is true about diffusion?Multiple choice question.Molecules move against their concentration gradients.Molecules move down their concentration gradients.

Diffusion is the net (overall) movement of particles from an area of high concentration to an area of lower concentration.Question 4Answera.Falseb.True

Diffusion occurs when a substance is at aconcentration in one region, and at a lower concentration in another region. This differencein is called the concentration .

Diffusion is needed by all forms of life. For example, the Salmonella bacteria below (in pink) are able to sense their environment around them by the diffusion of chemicals across their cell membranes.Complete the sentence below.During diffusion, particles move randomly from where there is a high concentration to areas where there is a __________ concentration of the particle.

The random process by which molecules spread from areas of higher concentration until they are uniformly distributed is calledGroup of answer choicesdiffusionsolubilityequilibriummixingosmosis