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Welcome to Osmosis Simulator

Use the controls to explore how animal and plant cells respond to isotonic, hypertonic and hypotonic solutions.

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LVM Lab Simulation

This is a virtual experiment. No real chemicals are required.

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Osmosis Simulator

C3 Biology

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Apparatus Parameters

1.0%
0% 1% 2%
External Water Potential Equal (Isotonic)
70 mL
Tip: Internal cell concentration is fixed at 1.0%. Increase or decrease the external concentration to observe different tonicity states.

Simulation View

Watch how the cell responds to osmotic changes.

State isotonic
Net Flow Zero net movement
Condition Normal

Understanding Tonicity

Visual guides for the three main states.

Isotonic

↔️

Equal solute concentration inside and outside. No net movement.

Hypertonic

➡️ ⬅️

High solute concentration outside. Water moves out of the cell.

Hypotonic

⬅️ ➡️

Low solute concentration outside. Water moves into the cell.

Test Your Knowledge

5 quick questions about cellular osmosis.

About Labsim

Interactive simulations designed for KSSM and IGCSE learners. Built to help students master science concepts with visual experiments.

Project

GNU GPL v3.0 licensed. Previous versions on GitHub.

© 2025 Labsim Von MozzaBot. Developed by Long Infinity.