Nucleic acids, proteins and enzymes

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Across
  1. 2. Enzymes lower the _______ energy required
  2. 4. The group present on the 3' end of DNA
  3. 5. To make a protein each amino acid is joined by a _______ reaction
  4. 7. This type of bond forms between nucleotides to form double stranded DNA
  5. 9. A dehydration reaction between amino acids forms a _______ bond
  6. 10. Van der Waals interactions _______ the structure
  7. 12. Proteins in the cell which make chemical reactions occur faster and easier
  8. 13. The sugar present in RNA
  9. 16. ______ interactions allow molecules and parts of molecules to interact
  10. 18. Polymers of amino acids
  11. 19. DNA is _______ stranded
  12. 20. Alpha helix and beta-pleated sheets are forms of what level of protein structure?
  13. 22. The unfolding of a protein, due to environmental changes causing loss of biological function
  14. 23. DNA is anti-parallel which means it runs in _______ directions
Down
  1. 1. The sugar present in DNA
  2. 3. Ionic or polar molecules are this?
  3. 6. The group present on the 5' end of DNA
  4. 8. Thymine pairs with what?
  5. 9. Adenine and guanine are ________
  6. 11. Cytosine, thymine and uracil are ________
  7. 14. What type of sugar is found in nucleotides?
  8. 15. Cytosine pairs with what?
  9. 17. A linear polymer of covalently bonded amino acids
  10. 21. How many levels of protein structure are there?