ECOLOGY – VOCABULARY Biotic Predator/Prey Abiotic Nutrient Species Nutrient Nitrogen Population Ammonia, Nitrites, Nitrates Community Nitrogen Fixing Bacteria Biome Nitrogen Fixation Biosphere Evaporation Food chain Water vapor Food web Condensation Autotroph Precipitation Heterotroph Transpiration Producer Infiltration Consumer Runoff Decomposer Groundwater Trophic Levels Aquifer Herbivore Surface water Carnivore H20 CO2 Omnivore O2 N2 Photosynthesis Range of Tolerance Respiration Tolerance Combustion Optimum Decomposition Limiting Factor Pyramid of Numbers Birth Rate Biomass Pyramid Death Rate Energy Pyramid Immigration Energy Loss Emigration Symbiosis Boom and Bust cycle Mutualism Carrying Capacity Parasitism Logistic Growth Curve Predation Exponential Growth ECOLOGY UNIT REVIEW QUESTIONS 1. What does the Energy Pyramid tell us about how an ecosystem supports top predators? 2. How does soil play an important role in the nitrogen cycle? 3. Compare what the curves of exponential growth, the logistic growth curve, and the boom and bust cycle (like the Kaibab Plateau deer) show about a population. 4. Describe the importance of what’s meant by the statement, “Energy flows, materials cycle” as it applies to natural systems. ON A SEPARATE PAGE 5. Select a specific, natural community. One that you can picture yourself in, or picture the habitat and community suitable for the daily routine of a specific animal. For this location, describe what’s going on in terms of all of the following ecological ideas: Interactions of biotic and abiotic factors Food webs, trophic levels, energy pyramid Cycles (or parts of cycles) of water, carbon, and nitrogen Interactions among species Chemistry of Life Vocabulary Atom pH Molecule Hydrogen ion Element Hydroxide ion Compound Building Block Proton Monomer Neutron Polymer Electron Macromolecule Nucleus Isomer Electron cloud Carbohydrate Isotope Monosaccharide Ion Disaccharide Ionic bond Polysaccharide Covalent bond Glucose Hydrogen bond Fructose Van der Waals forces Sucrose Activation Energy Lactose Endothermic Starch Exothermic Glycogen Reactant Cellulose Product Lipid Polar Molecule Glycerol Polarity Fatty Acid Solvent Protein Solute Amino Acid Solution Peptide bond Capillarity Polypeptide Surface Tension Enzyme Heat of fusion Substrate Heat of evaporation Active site Acid Catalyst Base Nucleic Acid Buffer Nucleotide Mixture Chapter 6: The Chemistry of Life Chapter Review Draw and label the structure of atoms, properly showing the location, number, and electric charges of the nucleus, protons, neutrons, and electrons; different energy levels; atomic mass and atomic number; and element symbol. (show Carbon – C, and Calcium - Ca) Describe the number pattern in which electrons settle in the different energy levels. Why are atoms mostly unstable when alone, and why do they form bonds with other atoms? What are the exceptions to this? Describe how an ionic bond works, and diagram an example of atoms forming an ionic bond. What makes a substance an acid? Describe the pH scale, including what it shows, its range, what is acid, neutral, and base, and four examples of the pH of common substances. (distilled water, rain water, acid rain, vinegar, ammonia) What happens to acidity when there is a buffer, like calcium carbonate, in the system? Describe how a covalent bond works, and show an example of two atoms that form a covalent bond. How many covalent bonds do the following atoms make? H O N C. Describe the four categories of organic compounds, name the building block compounds (monomers) and macromolecules (polymers) typical of each, and describe the functions they play in living cells.