Poisonous Plants: Causes and Effects
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Questions and Answers

What are some methods for alkaloid extract?

  • Exposing to direct sunlight
  • By Stass-Otto technique and Lylloids technique (correct)
  • Boiling in water
  • Freezing at low temperatures
  • Which factor does not affect the degree of plant toxicity?

  • Concentration of active principal substance
  • The growth of the plant
  • Color of the plant (correct)
  • Sensitivity of the animal
  • Which chemical compounds are commonly found in poisonous plants in Egypt?

  • Proteins
  • Lipids
  • Alkaloids (correct)
  • Carbohydrates
  • What tests can be used to detect alkaloids?

    <p>Mayer and Wagner test</p> Signup and view all the answers

    What can lead to toxicity with poisonous plants?

    <p>Severe hunger or thirst.</p> Signup and view all the answers

    Which family of plants is most common in containing alkaloids, according to the text?

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

    Which substance can be used to detect alkaloids?

    <p>Picric acid</p> Signup and view all the answers

    What can cause toxicity with poisonous plants?

    <p>Mixing green forage with green poisonous plants</p> Signup and view all the answers

    Which technique can be used for alkaloid extract?

    <p>Stass-Otto technique</p> Signup and view all the answers

    What factors affect the degree of plant toxicity?

    <p>The growth of the plant</p> Signup and view all the answers

    Study Notes

    Alkaloid Extraction

    • Methods for alkaloid extraction include percolation, maceration, and Soxhlet extraction
    • Another technique for alkaloid extraction is the use of chromatography

    Plant Toxicity

    • Factors that affect the degree of plant toxicity include the part of the plant used, the method of preparation, the dosage, and the individual's sensitivity
    • The factor that does not affect the degree of plant toxicity is the plant's color

    Alkaloids in Plants

    • Chemical compounds commonly found in poisonous plants in Egypt include pyrrolizidine alkaloids and tropane alkaloids
    • The family of plants most common in containing alkaloids is the Solanaceae family

    Detecting Alkaloids

    • Tests used to detect alkaloids include Mayer's test, Dragendorff's test, and Wagner's test
    • The substance used to detect alkaloids is Dragendorff's reagent

    Toxicity Caused by Plants

    • Causes of toxicity with poisonous plants include the ingestion of large quantities, allergic reactions, and the interaction with other medications
    • Inadequate preparation or incorrect identification of plants can also lead to toxicity

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    Description

    Explore the factors affecting plant toxicity and its impact on animal and human health. Learn about the varying degrees of toxicity in different plants and how it affects the livestock industry.

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