Osmosis and Plasmolysis

Also called

osmosis · plasmolysis · semi-permeable membrane · selectively permeable membrane · hypotonic solution · isotonic solution · hypertonic solution · potato osmometer · onion peel in salt water · turgid cell · flaccid cell · diffusion of water · cell membrane · परासरण · जीवद्रव्यकुंचन · अर्धपारगम्य झिल्ली

Topics

• Osmosis is the movement of water molecules through a semi-permeable membrane from a dilute solution to a more…
• The membrane lets small water molecules through its pores but holds back larger solute particles such as salt or sugar.
• In a hypotonic (more dilute) surrounding, water enters the cell and the cell swells and becomes turgid.
• In an isotonic surrounding the water entering and leaving balance, so the cell keeps its size.
• In a hypertonic (more concentrated) surrounding, water leaves the cell and the cell shrinks.
• Plasmolysis is the shrinking of the cytoplasm and cell membrane away from the rigid cell wall when a plant cell loses…
• Plasmolysis reverses when the cell is returned to fresh water, because water flows back in by osmosis.
• In a potato osmometer, water from the trough passes through the living potato cells into the sugar solution…
• Osmosis is how plant roots take up water from the soil and why salted vegetables release water.

About this model

A GLB file of about 380 KB, shown in Lably's 3D viewer and, on a phone, placed in your room with AR. Credit: Model, science and animation: Lably (built procedurally with three.js; no downloaded meshes). | CC BY 4.0. Original geometry and animation made for Lably.

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