The diagram shows the rate of diffusion into a cell using ca

The diagram shows the rate of diffusion into a cell using carrier proteins. Carrier proteins are saturated at which point? 3 1 4 2 The rate of diffusion will increase as temperature decreases. PH rises the number of glucose molecules decreases. the number of glucose molecules increases. Carrier proteins are saturated at which point? 4 3 2 1

Solution

At low concentrations of solute, the rate of diffusion into a cell for facilitated diffusion by carrier proteins, occurs almost linearly, like simple diffusion. Facilitated diffusion can increase the rate of diffusion of particular molecules at low concentrations. However, the rate of facilitated diffusion levels off with increasing solute concentration. Additional increases in external solute concentration cannot increase the rate of diffusion once carrier proteins are saturated. The answer would be 4 where the curve saturated and all the carrier proteins are saturated with solute molecules.

rate of diffusion increase with increase in temperature as the energy increase in temperature. Solutes move faster at higher temperature because more energy is avaialble to them. So not temperature. Particle size or molecular weight of the solute, temperature, concentration difference and diffusion distance affect the rate of diffusion.

pH seems to have no effect on rate of diffusion. ideally it will be increase in glucose molecules increases the rate of diffusion increases

last question is same as first question.