Describe the differences and similarities between diffusion and osmosis.
Diffusion and osmosis both describe the net movement of molecules down a concentration gradient, resulting in an even spread of the molecule over an area over time. Osmosis, however, is more specific as it relates solely to the net movement of water down the concentration gradient and across a semi-permeable membrane. Osmosis is therefore a form of diffusion, but not vice versa.
PS
Related Biology GCSE answers
All answers ▸What's the difference between an animal cell, a plant cell and a bacterial cell?
Describe the similarities and differences between animal and plant cells and the function of each component found in them.
How can two brown-eyed parents have a blue-eyed baby?
Explain how blood glucose levels are controlled in the body of someone who does not have diabetes.