Biology vocab

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Across
  1. 1. substance that releases HYDROGEN ions when dissolved in water. PH level LESS than 7
  2. 4. what holds atoms together in molecules
  3. 5. substance that releases HYDROXIDE ions when dissolved in water. PH GREATER than 7
  4. 6. type of chemical bond formed when atoms SHARE ELECTRONS
  5. 7. organic compound containg carbon, hydrogen, and oxygen, in a ratio of one oxygen oxygen and 2 hydrogen atoms for each carbon atom
  6. 11. weak electrostatic bond formed by attraction of opposite charges between a HYDROGEN AND OXYGEN ATOM
  7. 12. specific places where a substrate binds on an enzyme
  8. 14. mixture that can react with a base or an acid to maintain the PH within a specific range
  9. 15. carbon compound joined by peptide bonds; builing blocks of protiens
  10. 16. energy minimum amount of energy needed fir reactions to form products in a chemical reaction.
Down
  1. 2. PURE SUBSTANCE with unique properties; formed when 2 OR MORE DIFFERENT ELEMENTS COMBINE
  2. 3. substance that speeds a chemical reaction by reducing the activation energy
  3. 8. energy requiring process by which atoms or groups of atoms in substances are changed into different substances
  4. 9. atom that is negatively or positively charged because it has lost or gained an electron
  5. 10. the action or property of molecules sticking togther; mutally attractive
  6. 13. protein that speeds up a biological reaction by lowering the activation energy needed to start the reaction