Question

What are some factors that can affect the rate of diffusion?

Answer 1

Many factors can affect the rate of diffusion, including, but not limited to, concentration gradient, size of the particles that are diffusing, and temperature of the system. In living systems, diffusion of substances in and out of cells is mediated by the plasma membrane.

Answer 2

Answer:

• 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.