What is Osmosis?
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Objective
I can explain how osmosis moves water across a membrane.
Part 1 of 4
Warm-up video
Amoeba Sisters · 9:50Vetted channel
We don't generate video — this one is by Amoeba Sisters 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 4
Key concepts
3 concepts
- 1
In osmosis, water moves through a semi-permeable membrane from areas of high water concentration to areas of low water concentration.
- 2
A hypertonic solution has a higher solute concentration when compared to a hypotonic solution.
- 3
Water potential is calculated by adding pressure potential and solute potential, and water moves to areas of lower water potential.
Part 3 of 4
Practice
10 questions
Define osmosis in your own words.
What is a semi-permeable membrane, and why is it important in osmosis?
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe how water moves across a cell membrane during osmosis. Be sure to include the terms 'high concentration', 'low concentration', and 'solute'.”
Sample answer included in the free materials
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Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
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