3.1 Diffusion
- Syllabus
- 0610–2026–2027
- Topic
- 3.1
- Level
- —
3.1.1—Diffusion
- Describe diffusion as the net movement of particles from a region of their higher concentration to a region of their lower concentration (i.e. down a concentration gradient), as a result of their random movement
3.1.2—Energy for diffusion comes
- State that the energy for diffusion comes from the kinetic energy of random movement of molecules and ions
3.1.3—Diffusion through cell membranes
- State that some substances move into and out of cells by diffusion through the cell membrane
3.1.4—Importance of diffusion
- Describe the importance of diffusion of gases and solutes in living organisms
3.1.5—Factors that influence diffusion
- Investigate the factors that influence diffusion, limited to: surface area, temperature, concentration gradient and distance
Objective notes
5 learning objectivesConceptIGCSE Biology