Biochemistry Vocabulary Review

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Across
  1. 1. When two different molecules stick together, this is called _______.
  2. 5. Located on the right side of a chemical equation.
  3. 6. A column in the periodic table is referred to as a _______.
  4. 8. A row in the periodic table is called a _______.
  5. 10. A subatomic particle located in the nucleus. It has a positive charge.
  6. 12. This type of chemical reaction requires energy.
  7. 13. Atoms are most stable when their _______ shells are complete.
  8. 15. A substance that results from the combination of two or more elements.
  9. 16. A subatomic particle that orbits the nucleus and has a negative charge.
  10. 18. A negatively charged particle.
  11. 21. A positively charged particle.
  12. 23. The "universal" solvent necessary for life.
  13. 24. When two similar molecules stick together, this is called _______.
Down
  1. 2. Atoms of the same element, but with different atomic masses.
  2. 3. Biological macromolecules have a backbone composed of long chains of this elelment.
  3. 4. The smallest unit of a chemical element.
  4. 7. A group of two or more atoms that share electrons in a chemical bond.
  5. 9. This type of chemical reaction releases energy.
  6. 11. Located on the left side of a chemical equation.
  7. 14. Water has high surface tension due to these types of binds.
  8. 17. In this type of bond, atoms may equally or unequally share electrons.
  9. 19. A charged particle.
  10. 20. A neutral subatomic particle that is located in the nucleus.
  11. 22. In _______ bonds, atoms of opposite charges are attracted to each other.