Answer :
Final answer:
Osmosis is the movement of water across a semi-permeable membrane from areas of high to low water concentration, ensuring equilibrium. Semi-permeable membranes selectively allow the passage of certain molecules while restricting others.
Explanation:
Osmosis is a specific type of diffusion where water molecules move from an area of high water concentration to low water concentration through a semi-permeable membrane. This process helps maintain the balance of water on both sides of the membrane.
Semi-permeable membranes allow only certain molecules like water, oxygen, and carbon dioxide to pass through while blocking larger molecules such as glucose and proteins. Water movement through osmosis plays a crucial role in biological processes.
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