What's the difference between diffusion and osmosis?
Osmosis is the net movement of water from an area of high water potential to low water potential through a semi-permeable membrane, while diffusion is the net movement of any liquid or gas from an area of high concentration to low concentration. I would also check that the student understands the terms 'net', 'water potential', and 'semi-permeable membrane'.
RR
Related Biology GCSE answers
All answers ▸Explain how the mitochondria plays an important role in sustaining life?
1. Polydactyly is caused by a dominant allele, D. The recessive allele of the gene is represented by d. Use one genetic diagram to show the inheritance of the polydactyly gene by R and S.
Describe the differences and similarities between osmosis and diffusion (4 marks)
What role does acetylcholine have at the neuromuscular junction.