The Chemistry of Life

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Across
  1. 3. Process that changes, or transforms, one set of chemicals into another set of chemicals
  2. 7. Atom that has a positive or negative charge
  3. 8. Macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair
  4. 13. Compound that produces hydroxide ions in solution; solution with a pH of more than 7
  5. 15. Molecules composed of many monomers; makes up macromolecules
  6. 17. scale with values from 0 to 14, used to measure the concentration of H+ ions in a solution; a pH of 0 to 7 is acidic, a pH of 7 is neutral, and a pH of 7 to 14 is basic
  7. 19. Chemical bond formed when one or more electrons are transferred from one atom to another
  8. 20. The center of an atom, which contains the protons and neutrons
  9. 21. Material composed of two or more elements or compounds that are physically mixed together but not chemically combined
  10. 23. Substance that is dissolved in a solution
  11. 24. Smallest unit of most compounds that displays all the properties of that compound
  12. 26. Macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
  13. 30. dissolving substance in a solution
  14. 31. Substance that speeds up the rate of a chemical reaction
  15. 32. Force of attraction between different kinds of molecules
  16. 33. Weak attraction between a hydrogen atom and another atom
  17. 34. Negatively charged particle; located in the space surrounding the nucleus
  18. 35. Compound made up of carbon, hydrogen, and oxygen atoms; type of nutrient that is the major source of energy for the body
  19. 36. Sub-atomic particle that has no charge and is found in the nucleus of an atom
Down
  1. 1. Reactant of an enzyme-catalyzed reaction
  2. 2. Positively charged sub-atomic particle that is found in the nucleus of an atom
  3. 4. One of several forms of a single element, which contains the same number of protons but different numbers of neutrons
  4. 5. Energy that is needed to get a reaction started
  5. 6. Attraction between molecules of the same substance
  6. 9. Macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
  7. 10. Elements or compounds produced by a chemical reaction
  8. 11. Mixture of water and nondissolved material
  9. 12. Type of bond between atoms in which the electrons are shared
  10. 14. Type of mixture in which all the components are evenly distributed
  11. 16. Small chemical unit that makes up a polymer
  12. 18. Pure substance that consists entirely of one type of atom
  13. 22. Compound that prevents sharp, sudden changes in pH
  14. 25. Protein catalyst that speeds up the rate of specific biological reactions
  15. 27. Substance formed by the chemical combination of two or more elements in definite proportions
  16. 28. Elements or compounds that enter into a chemical reaction
  17. 29. Compound that forms hydrogen ions in solution; a solution with a pH of less than 7
  18. 32. The basic unit of matter