What are the factors affecting the rate
of diffusion?
What are the factors affecting the rate of diffusion?
Diffusion
is the passive movement of substances from a region of higher
concentration to a region of lower concentration. Diffusion of
substances plays an important role in cellular transport in plants.
Rate of diffusion is affected by concentration gradient, membrane
permeability, temperature, and pressure. Diffusion takes place as
long as there is a difference between the concentrations of a
substance across a barrier. However, diffusion stops, when the
concentrations of the substance on either side of the barrier become
equal. The permeability of a membrane affects the rate of diffusion.
Diffusion rate increases as membrane permeability increases. Changes
in temperature and pressure values also affect the diffusion of
substances. Pressure plays an important role in the diffusion of
gases as gases diffuse from a region of higher partial pressure to a
region of lower partial pressure.
Diffusion is the passive movement of substances from a region of higher concentration to a region of lower concentration. Diffusion of substances plays an important role in cellular transport in plants. Rate of diffusion is affected by concentration gradient, membrane permeability, temperature, and pressure. Diffusion takes place as long as there is a difference between the concentrations of a substance across a barrier. However, diffusion stops, when the concentrations of the substance on either side of the barrier become equal. The permeability of a membrane affects the rate of diffusion. Diffusion rate increases as membrane permeability increases. Changes in temperature and pressure values also affect the diffusion of substances. Pressure plays an important role in the diffusion of gases as gases diffuse from a region of higher partial pressure to a region of lower partial pressure.
