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2.B.2: Growth and dynamic homeostasis are maintained by the constant movement of molecules across membranes.
LO 2.7 Students will be able to explain how cell size and shape affect the overall rate of nutrient intake and the rate of waste elimination. [See SP 6.2]
LO 2.6 The student is able to use calculated surface area-to-volume ratios to predict which cell(s) might eliminate wastes or procure nutrients faster by diffusion. [See SP 2.2]
New
LO 2.7 Students will be able to explain how cell size and shape affect the overall rate of nutrient intake and the rate of waste elimination. [See SP 6.2]
LO 2.6 The student is able to use calculated surface area-to-volume ratios to predict which cell(s) might eliminate wastes or procure nutrients faster by diffusion. [See SP 2.2]
New
- I will investigate the relationship among surface area, volume, and the rate of diffusion.
- I will design experiments to measure the rate of osmosis in a model system.
- I will analyze the data collected in the experiments and make predictions about molecular movement through cellular membranes.
- I will work collaboratively to design experiments and analyze results.
- I will connect the concepts of diffusion and osmosis to the cell structure and function.
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- Go over experimental design for Procedures 1&2
- Perform investigations
- Analyze class data, write up results, conclusion and discussion for the two investigations.
- Answer bullet questions for each section
- Chapter 8 Review
- Friday- Quiz on Ch 6- cell structure and function./Review Ch7 --cell membrane structure.