Chapter 6 Biology Puzzle (15 terms)

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Across
  1. 1. small compounds that are made of carbon, nitrogen, oxygen, hydrogen, and sulfur.
  2. 2. pure substance formed when 2 or more different elements combine
  3. 5. the biological catalysts that speed up the rate of chemical reactions in biological processes
  4. 7. a substance that lowers the activation energy needed to start a chemical reaction
  5. 8. molecules made from repeating units of identical
  6. 9. type of macronutrient found in certain foods and drinks
  7. 11. positively charged particles
  8. 13. a compound made of small carbon compounds called amino acids
  9. 14. pure substance that cannot be broken down into other substances
  10. 15. molecules made mostly of carbon and hydrogen that make up fats, oils, and waxes
Down
  1. 1. building blocks of matter
  2. 3. smaller repeating subunits composed of carbon, nitrogen, oxygen, phosphorus, and hydrogen atoms
  3. 4. the minimum amount of energy needed for reactants to form products in a chemical reaction
  4. 6. complex macromolecules that store and transmit genetic information
  5. 10. an electrical attraction between two oppositely charged atoms
  6. 12. attractions between the molecules