Diffusion place an important role in gaseous exchange
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Diffusion means the movement of particles from higher concentration to lower concentration and it takes place in between gaseos particles
For ex: smell of perfume and the rate of diffusion is more in gas
the smell of food
For ex: smell of perfume and the rate of diffusion is more in gas
the smell of food
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Importance of gaseous and solute diffusion
Diffusion helps living organisms to:
→ obtain many of their requirements
→ get rid of many of their waste products
→ gas exchange for respiration
Examples :-
✔ CO2 uses by plants for photosynthesis is diffused from the air into the leaves, through the stomata (pores at the surface of leaves). There is a lower concentration of CO2 inside the leaf, as the cells are using it up.
✔ O2 (waste product of photosynthesis diffused out in the same way).
✔ Flowering plants use diffusion to attract pollinators like bees.
✔ Some of the products of digestion are absorbed from the ileum of mammals by diffusion.
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