MCAT Amino Acids

Edit Answers
1234567891011121314151617181920
Across
  1. 2. Contains an indole ring and is a serotonin precursor
  2. 4. Contains a γ-amide (–CONH₂)
  3. 5. Side chain is –H
  4. 7. Contains γ-carboxylate (–CH₂–CH₂–COO⁻)
  5. 9. Contains a β-amide (–CONH₂)
  6. 10. Contains a thioether (–S–)
  7. 12. Contains an imidazole ring
  8. 13. Side chain is sec-butyl
  9. 14. Side chain is isopropyl
  10. 16. Contains a phenol ring (benzene + –OH) and is a catecholamine precursor
  11. 19. Contains a guanidinium group
  12. 20. Contains a -SH(thiol) functional group that forms disulfide bonds.
Down
  1. 1. Side chain is –CH₃
  2. 3. Contains a phenyl ring only
  3. 6. Side chain is isobutyl
  4. 8. Contains β-carboxylate (–CH₂–COO⁻)
  5. 11. Contains –CH(OH)CH₃ (secondary alcohol)
  6. 15. Contains an ε-amino group in its side chain
  7. 17. Contains –CH₂OH (primary alcohol)
  8. 18. Contains a pyrrolidine ring (secondary amine)