Pharmacognosy: Study of Medicinal Sources
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Questions and Answers

What does pharmacognosy study?

  • Properties of drugs and their commercial value
  • Physical, chemical, biochemical, and biological properties of drugs (correct)
  • Synthetic drugs only
  • The history of medicine
  • What are crude drugs?

  • Drugs with high purity
  • Drugs that have undergone extensive processing
  • Synthetic drugs
  • Dried, unprepared materials of plant, animal or mineral origin used for medicine (correct)
  • What do the Greek words 'pharmakon' and 'gnosis' mean?

  • 'Medicine' and 'healing'
  • 'Nature' and 'balance'
  • 'Drug' and 'knowledge' (correct)
  • 'Health' and 'power'
  • Who first used the term 'pharmacognosy'?

    <p>Johann Adam Schmidt</p> Signup and view all the answers

    What did 'pharmacognosy' originally define during the 19th century and the beginning of the 20th century?

    <p>The branch of medicine dealing with drugs in their crude form</p> Signup and view all the answers

    What does pharmacognosy study?

    <p>Physical, chemical, biochemical, and biological properties of drugs of natural origin</p> Signup and view all the answers

    What are crude drugs?

    <p>Dried, unprepared material of plant, animal or mineral origin used for medicine</p> Signup and view all the answers

    What is the origin of the term 'pharmacognosy'?

    <p>Derived from Greek words meaning 'drug' and 'knowledge'</p> Signup and view all the answers

    Who first used the term 'pharmacognosy'?

    <p>Johann Adam Schmidt</p> Signup and view all the answers

    'Pharmacognosy' was originally used to define which branch of medicine or commodity sciences?

    <p>'Warenkunde' dealing with drugs in their crude, or unprepared form</p> Signup and view all the answers

    Which type of glycoside is derived from Senna, Aloe, and Rhubarb?

    <p>Anthracene glycosides</p> Signup and view all the answers

    Which glycoside type is found in Bitter almond and Wild cherry bark?

    <p>Isothiocyanate glycosides</p> Signup and view all the answers

    Which type of glycoside is present in Milk thistle, Citrus fruits, and Gingko?

    <p>Flavonoids</p> Signup and view all the answers

    Which glycoside type is derived from Visnaga, Ammi, and Psoralea?

    <p>Coumarin and furanocoumarin glycosides</p> Signup and view all the answers

    Which type of glycoside is found in Kalmegh, Gentian, and Picrorrhiza?

    <p>Bitter glycosides &amp; miscellaneous glycosides</p> Signup and view all the answers

    Study Notes

    Pharmacognosy Overview

    • Pharmacognosy studies the physical, chemical, biological, and pharmacological properties of drugs obtained from natural sources, including plants, animals, and minerals.

    Crude Drugs

    • Crude drugs are unprocessed or partially processed natural substances used as medicinal agents.

    Origin of Term 'Pharmacognosy'

    • The term 'pharmacognosy' originates from the Greek words 'pharmakon' meaning remedy or medicine, and 'gnosis' meaning knowledge.

    History of Pharmacognosy

    • The term 'pharmacognosy' was first used by the German pharmacist Johann Andreas Buchner in 1844.
    • During the 19th and early 20th centuries, pharmacognosy originally defined the branch of medicine dealing with the analysis and preparation of drugs from natural sources, including the study of crude drugs.

    Types of Glycosides

    • Anthraquinone glycosides are derived from Senna, Aloe, and Rhubarb.
    • Cyanogenic glycosides are found in Bitter almond and Wild cherry bark.
    • Flavonoid glycosides are present in Milk thistle, Citrus fruits, and Gingko.
    • Furanocoumarin glycosides are derived from Visnaga, Ammi, and Psoralea.
    • Iridoid glycosides are found in Kalmegh, Gentian, and Picrorrhiza.

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    Description

    Explore the field of pharmacognosy, which involves the study of medicinal drugs and substances derived from natural sources such as plants, animals, and fungi. Learn about the physical, chemical, biochemical, and biological properties of these natural drugs and the search for new medications.

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