Chapter 2.3 - 2.5 Review

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Across
  1. 3. the monomer of a nucleic acid
  2. 4. this is how many covalent bonds carbon can form with other atoms
  3. 6. carbohydrates are made of carbon, hydrogen, and ?
  4. 7. this element is the building block of life
  5. 8. energy needed to be absorbed to start a chemical reaction
  6. 10. this lipid has a ring structure
  7. 12. the arrow in a chemical reaction shows the ____ of the reaction
  8. 16. the enzyme present in your saliva
  9. 18. this is the amount of energy it takes to break a bond between two atoms
  10. 20. the smallest subunit in a polymer
  11. 21. this is the specific reactant that an enzyme acts on
  12. 23. examples are DNA & RNA
  13. 25. every enzyme's function depends on its ___
  14. 27. this polymer is made up of simple sugars
  15. 28. these are on the left side of a chemical equation
  16. 29. attracted to water
  17. 30. another name for R group
  18. 31. the monomer of lipids is fatty acids and ___
Down
  1. 1. activation energy can come from an increase in
  2. 2. every nucleotide includes a P group, a nitrogen base, and a ____
  3. 5. because the tails of a phospholipid do not have charged regions, they are ___
  4. 9. if a fatty acid has all single bonds, it is considered ____
  5. 11. a single fat molecule
  6. 13. in this reaction, more energy is released than absorbed
  7. 14. in an endothermic reaction, which side of the equation has a higher bond energy?
  8. 15. many simple sugars bonded together
  9. 17. this is another name for simple sugar
  10. 19. this is a catalyst for chemical reactions in living things
  11. 22. this is the monomer of proteins
  12. 24. this is the substrate that amylase acts on
  13. 26. if a reaction can go in both directions at the same time, it is ___