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UNIT 2: ECOLOGICAL BIOCHEMISTRY 2C: CHEMISTRY OF ECOLOGY Roadmap for the year: Unit 1: Interconnectedness of Life Unit 2: Ecological Biochemistry 2A- Basic Chemistry 2B- Biochemistry 2C- Chemistry of Ecology 2D- Human Impact Unit 3: Cellular Biology: Structure Leads to Function Unit 4: DNA Structure and Cellular Reproduction Unit 5: Gene Expression and Inheritance Unit 6: Evolution and Classification of Living Things Unit 7: Biotechnology, Human Biology, and Disease Themes for the year: How does this unit contribute to your understanding of the following themes? Life on Earth has various Levels of Organization The Structure of Living Things leads to their Function The Big Picture for Unit 2… Living organisms are made of molecules that react with each other in predictable ways. There are four main groups of biological molecules that make up the structure of living things and control their functioning. The existence of life on Earth depends on interactions among organisms and between organisms and their environment. Matter cycles through ecosystems with a constant input of energy What is the relationship between chemistry and biology? What role do biological molecules play in sustaining and controlling life? How do enzymes control the rate of reactions? What are some of the roles of the organisms in ecosystems? How does an organism’s structure enable it to survive in its environment? Why do you find similar groups of organisms in similar environments around the Earth? Why is the cycling of matter important to life on earth? What factors affect population size and how does the size of a population size affect its environment? How do human activities shape local and global ecology? Suggested Resources… Homework Assignments Classwork Assignments Laboratory Activities Formative Assessments Textbook (30.2, 3.2, 3.3, 3.4, 4.2) Directions: Below are check lists of things you should know and things you should be able to do by the end of the unit. Use this tool to help you prepare for the unit assessment. By the conclusion of this unit, you should know the following: 1. The sun is the ultimate source of energy for most ecosystems. As a result, organisms exhibit different strategies to obtain this energy (directly or indirectly). 2. Energy relationships can be represented in a graphical depiction called a pyramid. 3. There are 2 major types of biological molecules that provide energy for organisms (carbohydrates and lipids). 4. Elements can cycle in various molecular forms through the biosphere. The carbon, oxygen, nitrogen, and water cycles are examples essential to life. 5. Matter cycles through food chains but energy must continually be supplied. 6. There are varying levels of biodiversity found in the different biomes. 7. Species may exhibit an interdependence with one or more species termed symbiosis. By the conclusion of this unit, you should be able to do the following: 1. Identify the three types (energy, biomass, & numbers) of ecological pyramids. 2. Illustrate the relationship between photosynthesis and cell respiration. 3. Illustrate conservation of energy and matter in the form of energy and biomass pyramids. 4. Explain the role of bacteria in the N cycle. 5. Explain how decomposition plays a role in the cycling of carbon, oxygen and nitrogen. 6. Describe how water cycles through the biosphere. 7. Compare and contrast the flow of energy and matter through an ecosystem. 8. Identify different types of symbiosis. 9. Identify the three types of symbiotic relationships in nature. CHEMISTRY OF ECOLOGY KEY TERMS Words found in the textbook: 1. Biogeochemical Cycle 2. Nutrients 3. Limiting Nutrient 4. Nitrogen Fixation 5. Denitrification 6. Decomposer 7. Cellular Respiration 8. Photosynthesis 9. Herbivory 10.Keystone Species 11.Mutualism 12.Commensalism 13.Predation 14.Symbiosis Words found in various pages in textbook: 15.Water Cycle (pg 81) 16.Carbon Cycle (pg 82) 17.Nitrogen Cycle (pg 84) Words NOT found in the textbook (use the notes/PowerPoint): 18.Condensation 19.Groundwater 20.Precipitation 21.Runoff 22.Combustion 23.Evaporation 24.Transpiration 25.Fossil Fuels 26.Parasitism 27.Competition 28.Eutrophication