Osmosis and Diffusion

Osmosis and Diffusion

Grade 9 · Science · 45 min· Standard Sc15.bio.4 Develop And Use Models To Explain The Role Of Cellular Structures In Maintaining Homeostasis Through The Transport Of Molecules.

What's Included

Learning Objective

I can use a model to demonstrate how osmosis and diffusion transport molecules into and out of cells to maintain homeostasis.

Warm-Up Video

Unknown Channel · 5:00

Diffusion, Osmosis & Active Transport - Biology (full version)

Exit Ticket

Quick comprehension check

Imagine a cell with a semi-permeable membrane is placed in a solution with a higher concentration of glucose than inside the cell. Describe, using the principles of osmosis, how water will move and explain why this movement occurs. A scientist observes that a cell placed in a certain solution swells up. Explain whether the solution is hypertonic, hypotonic, or isotonic relative to the cell, and describe how osmosis caused the cell to swell.

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