1. Cellular Processes and structure
04 Homeostasis
Exchange of energy/matter
Homeostatic mechanisms
Defense against infection

2. Homeostasis Curriculum Framework: 2.D.1-2
Holtzclaw: (not everything, I’ll keep looking)

3. Organisms have various methods to maintain homeostasis
Reflect evolutionary history
animals and fungi share many mechanisms at the cellular level
Some stressors are universal
ex. aquaporins
ex. oxidative stress
But the response can differ from one species to the next.
Bacterial aquaporins differ from those of animals
Bacteria and plants produce different antioxidants for the same oxidative stress

4. Various mechanisms for obtaining nutrients and eliminating wastes
Example Digestive mechanisms:
food vacuoles
gastrovascular cavities
one-way digestive systems

5. mechanisms for obtaining nutrients and eliminating wastes (cont.)
What mechanisms do plants have for obtaining nutrients and eliminating waste?

6. Homeostatic mechanisms of microbes, plants and animals support common ancestry
Example:

7. Disruptions to homeostasis
Lesson 3

8. Disruptions at the molecular and cellular level
Ex. Your cells produce catalase in response to hydrogen peroxide
This is true of all known organisms
How do you think bacteria respond to a lack of water?

9. Disruption of ecosystems
Invasive and/or eruptive species
Human impact
Hurricanes, floods, earthquakes, volcanoes, fies
Water limitation
Salination