Hook
Opening: Gas Exchange and Tropisms in Plants
- Introduce plant-gas-exchange-and-tropisms.
Units / Unit C / Gas Exchange and Tropisms in Plants
Gas Exchange and Tropisms in Plants
Stomata, lenticels, phototropism, gravitropism history (C-GO3-SO4–SO6).
Outcome checklist
Alberta Program of Studies — tick each row when you can explain it without the slide.
- C-GO3-SO4
By the end of this lesson you should be able to: Explain and investigate the gas exchange system in plants; i.e., lenticels, guard cells, stomata and the process of diffusion
Self-check: Without looking at your notes, give one example or explanation that shows you meet C-GO3-SO4.
- C-GO3-SO5
By the end of this lesson you should be able to: Explain and investigate phototropism and gravitropism as examples of control systems in plants
Self-check: Without looking at your notes, give one example or explanation that shows you meet C-GO3-SO5.
- C-GO3-SO6
By the end of this lesson you should be able to: Trace the development of theories of phototropism and gravitropism (e.g., from Darwin and Boysen-Jensen to Went)
Self-check: Without looking at your notes, give one example or explanation that shows you meet C-GO3-SO6.
- C-GO3
Big idea: Analyze plants as an example of a multicellular organism with specialized structures at the cellular, tissue and system levels
Self-check: How does today's lesson connect to C-GO3?
Where this shows up later
- Unit D — Biomes: Plant adaptations appear in biome studies.
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.
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