What processes take phosphorus out of the earth’s surface? Plants use phosphate in the soil and then consumers like animals gain the phosphate. 25. Carbon is needed by organisms to make what macromolecules? 26. Nitrogen is needed by organisms to make what macromolecules? 27. Using the images above, give an example of how human activities disrupt each of these cycles. Carbon cycle- Burning fossil fuels releases far more CO2 into the environment than plants can absorb. Nitrogen cycle- we use nitrogen as fertilizer but then the runoff alters environments in a negative way- throws balance off Water cycle- Deforestation removes parts of the system like plants to transpirate and can turn fertile soil into unusable soil Phosphorus cycle- using phosphorus in fertilizer also disrupts an ecosystems balance. 28. Explain this statement: energy flows, matter is recycled Energy flows through the food cycle- a plant absorbs the sun’s energy, and then the animal
29. Travels to the ribosomes. D (RNA) 30. Part of an enzyme. B (proteins/amino acids)
31. Part of a starch molecule A (monosaccharide) and E (polysaccharide) 32. A amino acid B (is technically 2 amino acids but okay) 33. A lipid G, F, C 34. A carbohydrate A + E 35. A nucleic acid D 36. Good for quick energy. A and E 37. List the molecule that would be hydrophobic. 38. List the molecule that would be involved primarily in cell membranes. 39. List the molecule that would be involved in heart disease.C is cholesterol 40. Stored in longer chains called glycogen A (monosaccharide) 41. Most common carbohydrate in our body. A Evolution and Chemistry of Life
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