DP Chemistry Questionbank
D.3 Opiates
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[N/A]Directly related questions
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16N.3.sl.TZ0.20b:
Methadone is sometimes used to help reduce withdrawal symptoms in the treatment of heroin addiction. Outline one withdrawal symptom that an addict may experience.
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17M.3.sl.TZ1.18b.ii:
State and explain the action of opiates as painkillers.
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17M.3.sl.TZ1.18b.i:
Suggest the type of reaction used to convert morphine to codeine.
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17M.3.sl.TZ2.16b:
Suggest a reagent used to prepare diamorphine from morphine.
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17M.3.sl.TZ2.16a:
Explain why diamorphine passes more readily than morphine through the blood-brain barrier.
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17M.3.sl.TZ2.16c:
Suggest one reason why codeine is available without prescription in some countries whilst morphine is administered under strict medical supervision.
- 20N.3.sl.TZ0.14c(ii): State the natural source from which codeine, morphine and diamorphine are obtained.
- 20N.3.sl.TZ0.14c(i): State and explain the relative solubility of codeine in water compared to morphine and diamorphine.
- 20N.3.hl.TZ0.19c(i): State and explain the relative solubility of codeine in water compared to morphine and diamorphine.
- 20N.3.hl.TZ0.19c(ii): State the natural source from which codeine, morphine and diamorphine are obtained.
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17N.3.sl.TZ0.17b.ii:
Explain why opiates are addictive.
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17N.3.sl.TZ0.17b.i:
The strong analgesics morphine and codeine are opiates. Outline how codeine can be synthesized from morphine. The structures of morphine and codeine are in section 37 of the data booklet.
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18M.3.sl.TZ1.13d.i:
Morphine and codeine are strong analgesics. Outline how strong analgesics function.
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18M.3.sl.TZ1.13d.ii:
Suggest one reason why codeine is more widely used than morphine as an analgesic.
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18M.3.sl.TZ2.17:
Morphine and diamorphine (heroin) are both opioids.
Explain why diamorphine is more potent than morphine using section 37 of the data booklet.
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18N.3.sl.TZ0.13a:
Explain why diamorphine (heroin) crosses the blood–brain barrier more easily than morphine.
- 18N.3.sl.TZ0.13b: Describe the analgesic action of an opiate.
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18N.3.hl.TZ0.17a:
Explain why diamorphine (heroin) crosses the blood–brain barrier more easily than morphine.
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19M.3.hl.TZ1.23a:
Explain how opiates act to provide pain relief.
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19M.3.hl.TZ1.23b:
Discuss how the difference in structure of two opiates, codeine and morphine, affect their ability to cross the blood–brain barrier. Use section 37 of the data booklet.
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19M.3.hl.TZ2.21b:
Explain why diamorphine (heroin) is more potent than morphine using section 37 of the data booklet.
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19M.3.sl.TZ1.18a:
Explain how opiates act to provide pain relief.
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19M.3.sl.TZ1.18b:
Discuss how the difference in structure of two opiates, codeine and morphine, affect their ability to cross the blood–brain barrier. Use section 37 of the data booklet.
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19M.3.sl.TZ2.14b(i):
State one advantage of using morphine as an analgesic.
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19M.3.sl.TZ2.14b(ii):
Explain why diamorphine (heroin) is more potent than morphine using section 37 of the data booklet.
- 19N.3.sl.TZ0.15b: Explain why diamorphine has greater potency than morphine.
- 19N.3.sl.TZ0.15a: State the names of two functional groups present in all three molecules, using section 37 of the...
- 19N.3.hl.TZ0.21a: Explain why diamorphine has greater potency than morphine.
