Objectives
• Observe the relationship between diffusion and solute size
• Observe the passage of water through semi-permeable membranes through osmosis
• Observe and analyze the changes that occur in plant tissues incubated at hypotonic, hypertonic, and isotonic solutions
• Observe and assess the effect of water potential on osmosis and calculate the concentration and water potential of plant tissue
Curriculum alignment
• NGSS
LS1-2 Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.
• AP
2.6 Membrane Transport
2.7 Facilitated Diffusion
2.8 Tonicity and Osmoregulation
• IB DP
1.4 Estimation of osmolarity in tissues by bathing samples in hypotoni and hypertonic solutions.
• Cambridge GCSE
3.1 Diffusion
3.2 Osmosis
4.2 Movement into and out of cells
• Cambridge AS & A Level
4.2 Movement into and out of cells