Osmosis and Diffusion

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Objective

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

Part 1 of 2

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 2

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.

Sample answer included in the free materials

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