Outcomes: Osmoregulation 3Describe how organisms osmoregulate in different habitats, on the: A) cellular level, using active and passive transport across membranes B) individual organism level, in terms of inputs and outputs More, Osmoregulation 4Compare and contrast how organisms osmoregulate in different habitats. More
Prerequisite outcomes: Gradients 1Explain what a gradient is and the role of gradients in: A) Homeostasis B) Thermoregulation C) Osmoregulation D) Chemical reactions associated with metabolism More, Gradients 3Indicate the direction of energy or material movement under different conditions such as: A) Chemical concentrations B) Temperature C) Permeability of membranes More; Membrane Transport 2Explain how processes of transport work including: A) Diffusion i) Passive ii) Facilitated B) Osmosis i) Passive ii) Facilitated C) Active transport More, Membrane Transport 3Define the following terms, and explain how they relate to the movement of materials across a membrane: A) Isotonic B) Hypotonic C) Hypertonic More
- Apply the concept of the ratio of surface area-to-volume, previously considered in the context of thermoregulation, to osmoregulation using these clicker questions:
- This case study could also be used to reinforce concepts of osmoregulation
- Osmosis – Osmosis is Serious Business! – This directed case study involves two “stories,” each one concerned with some aspect of osmosis in living cells. Part I is centered around the effects of a hypertonic environment on plant cells, while Part II focuses on the effects of a hypotonic environment on human cells. (Osmoregulation 3Describe how organisms osmoregulate in different habitats, on the: A) cellular level, using active and passive transport across membranes B) individual organism level, in terms of inputs and outputs More, Osmoregulation 4Compare and contrast how organisms osmoregulate in different habitats. More)