Functions of diffusion in living organisms

Functions of diffusion in living organisms

1. Gaseous exchange at the lungs
2. Absorption of glucose and amino acids from intestine
3. Absorption of water from colon
4. Uptake of glucose by cells from blood: Glucose does not diffuse freely through the cell membrane because it is insoluble in lipids. It passes through the cell membrane is facilitated by proteins. Therefore, diffusion of glucose through the cell membrane is called facilitated diffusion.
5. Gaseous exchange for photosynthesis
6. Loss of water during transpiration
7. Diffusion of flower scent to attract insect pollinators.
8. Absorption of ions from the soil

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