Biology Crossword Puzzle

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Across
  1. 7. a process in which one or more substances are converted to one or more different substances
  2. 9. a subatomic particle with a positive charge
  3. 10. a chemical bond that involves the sharing of electrons to form electron pairs
  4. 13. a homogeneous mixture where one substance is evenly and completely distributed into another substance
  5. 14. the basic unit of an element, is the building block of everything
  6. 15. the substance being dissolved when forming a solution
  7. 16. an elementary particle that has a negative charge of electricity and travels around the nucleus of an atom
  8. 18. a combination of two or more substances in any proportion
  9. 19. a substance that releases hydroxide ions into solutions
  10. 20. a molecule made up of amino acids linked together by covalent bonds
  11. 26. the smallest particle of a substance that has all of the physical and chemical properties of that substance
  12. 27. a substance made up of two or more different chemical elements
  13. 28. a solution that can resist pH change upon the addition of an acidic or basic components
  14. 29. a biological molecule composed of carbon, hydrogen, and oxygen atoms
Down
  1. 1. a region on an enzyme that binds to a protein or other substance during a reaction
  2. 2. the positively charged center of the atom consisting of protons and neutrons
  3. 3. a molecule that is the basic building block of the nucleic acids DNA and RNA
  4. 4. a subatomic particle with a neutral charge
  5. 5. a substance that is present at the start of a chemical reaction
  6. 6. an atom or molecule that is charged due to a difference in number of electrons and protons
  7. 8. a substance with the ability to dissolve other substances to form a solution
  8. 11. a substance that acts as a catalyst in living organisms
  9. 12. a substance that is present at the end of a chemical reaction
  10. 17. large molecules formed by joining smaller organic molecules together
  11. 20. a large molecule made up of many repeating compounds called monomers
  12. 21. an atom with the same amount of protons but different amount of neutrons
  13. 22. the fundamental building blocks of proteins
  14. 23. a substance that speeds up a chemical reaction without being consumed during the reaction
  15. 24. the reactants that bind to an enzyme
  16. 25. a substance that releases hydrogen ions into solutions