Question

Briefly define osmosis and diffusion, being sure to explain how they are different and how they are similar?

Answer 1

Osmosis is the process by which solvent particles flow from a dilute solution to one that is more concentrated. Diffusion, in contrast, is the transfer of particles from a region of higher concentration to one of lower concentration.

What are the differences and similarities between osmosis and diffusion?

Differences:

• While osmosis describes the process by which water, or other solvents, flow through a semipermeable membrane, leaving other bits of matter in its path, diffusion involves molecules in a high concentration area moving to areas with a low concentration. As an illustration, oxygen diffuses into red blood cells, and salt placed outside a cell would osmotically suck the water out of the cell, drying it.
• Molecular size and electric charge affect how quickly molecules diffuse through a membrane. Instead of the type of molecule on either side of the membrane, osmosis is dependent on particle concentration.

Similarities:

• As passive processes, diffusion and osmosis don't require energy to take place.

Learn more about osmosis and diffusion here:

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