Units / Unit C / Diffusion, Osmosis, and Active Transport

Diffusion, Osmosis, and Active Transport

Compare passive and active transport with models (C-GO2-SO1, C-GO2-SO2).

Full lesson guide (printable)

Outcome checklist

Alberta Program of Studies — tick each row when you can explain it without the slide.

C-GO2-SO1
By the end of this lesson you should be able to: Compare passive transport of matter by diffusion and osmosis with active transport in terms of the particle model of matter, concentration gradients, equilibrium and protein carrier molecules (e.g., particle model of matter and fluid-mosaic model)
Self-check: Without looking at your notes, give one example or explanation that shows you meet C-GO2-SO1.
C-GO2-SO2
By the end of this lesson you should be able to: Use models to explain and visualize complex processes like diffusion and osmosis, endo- and exocytosis, and the role of cell membrane in these processes
Self-check: Without looking at your notes, give one example or explanation that shows you meet C-GO2-SO2.
C-GO2
Big idea: Describe the function of cell organelles and structures in a cell, in terms of life processes, and use models to explain these processes and their applications
Self-check: How does today's lesson connect to C-GO2?

Where this shows up later

Unit C — Equilibrium: Dynamic equilibrium in cells and environments.

Lab and demo watch-outs

Classroom safety
Follow school rules for equipment, goggles, and fire safety even during thought experiments.
Any time hands-on work is suggested.

Slide 1 of 813%

Hook

Opening: Diffusion, Osmosis, and Active Transport

Introduce diffusion-osmosis-active-transport.

Core explanation

We start with a real situation: Introduce diffusion-osmosis-active-transport. Your job is to notice evidence and ask questions before memorizing definitions.

Check your understanding

Can you connect this slide to something we learned earlier today?

Explain moreDeeper teaching notes — read like a tutor explaining the idea

Unit C — Diffusion, Osmosis, and Active Transport: Particles move down gradients unless cells spend energy to pump them. On this slide («Opening: Diffusion, Osmosis, and Active Transport»), the science story is: Introduce diffusion-osmosis-active-transport. Read like a tutor: connect each bullet to evidence or a model, not memorized wording. Alberta Science 10 expects you to explain ideas in class discussions and written work — this slide supports outcomes C-GO2-SO1, C-GO2-SO2.

Worked example(s)Step-by-step reasoning, not just answers

Apply: Opening: Diffusion, Osmosis, and Active Transport
1. State the core idea: Introduce diffusion-osmosis-active-transport.
2. Link to a second point: Introduce diffusion-osmosis-active-transport.
3. Give one Alberta or daily-life example that fits both ideas.
4. Check your example against the slide — would your teacher agree?
Why this works: Application proves understanding beyond repeating bullets.

Common mistakes to avoid

Repeating the slide without understanding.
Cover the bullets and explain the idea using a new example.

Try it yourself

Teach «Opening: Diffusion, Osmosis, and Active Transport» aloud in 60 seconds using two bullets and one vocabulary word from today’s list.