Opioids

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Across
  1. 3. The type of painkiller Morphine is
  2. 5. Morphine’s five-ring backbone is described as __________.
  3. 6. An oxygen atom that links parts of morphine’s ring system together.
  4. 7. The type of amine in morphine that becomes positively charged in the body.
Down
  1. 1. A type of interaction between the aromatic ring and the receptor.
  2. 2. Opioid drug used to relieve severe pain.
  3. 4. Functional group (–OH) found twice in morphine