Evidence of student learning is a demonstrated understanding of each of the following:
1. Carbon moves from the environment to organisms where it is used to build carbohydrates, proteins, lipids or nucleic acids. Carbon is used in storage compounds and cell formation in all organisms.
2. Nitrogen moves from the environment to organisms where it is used in building proteins and nucleic acids.
2.5 Phosphorus moves from the environment to organisms where it is used in nucleic acids and certain lipids.
3. Living systems depend on properties of water that result from its polarity and hydrogen bonding.
To foster student understanding of this concept, instructors can choose an illustrative example such as:
• High specific
• heat capacity
• Universal solvent supports reactions
• Heat of vaporization
Ecological Connections Project- finish by next Tuesday BOP- 0-per go over as a class. Ecology quiz on Tuesday-includes grid-in type questions
Missing a few students for the phone tree.
Biogeochemical cycles presentation-four groups- - You will have 20 minutes to draw cycles and prepare for presenting
Biogeochemical cycles presentation
Draw and be able to describe your assigned bio-geochemical cycles as it would work in your local ecosystem and then answer the 10 questions related to that biogeochemical cycle:
- Water cycle -modified questions
- Carbon cycle
- Nitrogen cycle
- Phosphorus cycle
1. ____ What are some ways that these molecules enter (i.e. inputs) and exit (i.e. outputs) this ecosystem?
2. ____ Are there reservoirs of these elements/molecules? If so explain where they are.
3. ____ What is/are the form(s) in which each chemical is available or used by organisms?
4. ____ Why are these elements or molecules of biological importance? (be specific!)
5. ____ What can affect the rate of this biogeochemical cycle?
6. ____ What are the key processes that drive the movement of each chemical through its biogeochemical cycle?
7. ____ Provide an example of a positive or negative feedback loop involving this cycle.
8. ____ Do these materials recycle locally (over short distances) or globally or both? Explain
9. ____ What factors affect the rate of biogeochemical cycling in your ecosystem?
10. ____ How have humans altered each of these biogeochemical cycles (be specific)? ____ What are (may) be consequences of these alterations?