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Osmosis

Describe osmo...

Question

Describe osmosis and diffusion.
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Solution

Osmosis is the special case of diffusion involving water molecules. Water molecules move from areas of high water concentration to areas of low water concentration through a selectively permeable membrane.

Diffusion is a spontaneous movement of particles from an area of high concentration to an area of low concentration; it does not require energy.

Solute
$\begin{matrix} O s m o s i s & D i f f u s i o n I t i n v o l v e s m o v e m e n t o f s o l v e n t m o l e c u l e s & I t i n v o l v e s m o v e m e n t o f s o l u t e m o l e c u l e s M o l e c u l e s m o v e f r o m l o w e r c o n c e n t r a t i o n & M o l e c u l e s m o v e f r o m h i g h e r c o n c e n t r a t i o n o f s o l u t e t o h i g h e r c o n c e n t r a t i o n o f s o l u t e & o f s o l u t e t o l o w e r c o n c e n t r a t i o n o f s o l u t e I t o c c u r s o n l y a c r o s s a s e m i p e r m e a b l e m e m b r a n e & I t d o e s n o t r e q u i r e s e m i - p e r m e a b l e m e m b r a n e E x a m p l e : S h r i n k i n g o f p o t a t o s l i c e & E x a m p l e : S p r e a d i n g o f i n k w h e n a w h e n k e p t i n c o n c e n t r a t e d s u c r o s e s o l u t i o n & d r o p o f i t i s p u t i n a g l a s s o f w a t e r . \end{matrix}$

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