Medicinal Plants: Chemical Defenses
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Questions and Answers

What is the purpose of some chemicals produced by plants?

  • Enhance their own survival
  • Act as herbicides to inhibit the growth of competing plants
  • Deter browsing by insects and herbivores
  • All of the above (correct)
  • What is the product of the molecular binding of water and carbon dioxide during photosynthesis?

  • Energy and simple inorganic molecules
  • Carbon monoxide
  • Oxygen gas
  • Carbohydrate single molecules (glucose) (correct)
  • Where does cellular respiration take place in plants?

  • Roots absorbing water from the soil
  • Mitochondrial organelles (correct)
  • Stems transporting nutrients
  • Mesophyll cells containing chlorophyll pigment
  • What are responsible for the exchange of oxygen and carbon dioxide between living organisms?

    <p>Photosynthesis and cellular respiration</p> Signup and view all the answers

    Where does photosynthesis take place in plants?

    <p>Mesophyll cells containing chlorophyll pigment</p> Signup and view all the answers

    ما الذي يقوم به الاستقلاب الخلوي؟

    <p>تحويل الأكسجين والجلوكوز إلى الماء وثاني أكسيد الكربون</p> Signup and view all the answers

    أين يحدث تفاعل ارتباط الماء وثاني أكسيد الكربون لإنتاج جلوكوز؟

    <p>في خلايا المادة الخضراء (mesophyll cells)</p> Signup and view all the answers

    ما هي وظيفة عملية التنفس الخلوي؟

    <p>تحطم المركبات المعقدة إلى طاقة وجزيئات معدنية بسيطة مرة أخرى</p> Signup and view all the answers

    Study Notes

    Medicinal Properties of Plants

    • Plants produce biologically active chemicals that benefit themselves and other organisms.

    Reasons for Medicinal Properties

    • Plants produce herbicides to inhibit growth of competing plants, enhancing their own survival.
    • Plants produce substances to deter insects and herbivores from browsing, promoting self-preservation.

    Chemical Compounds in Plants

    • Plants produce a wide variety of chemical compounds to maintain vigor, promote growth, and resist environmental challenges.

    Photosynthesis in Plants

    • Photosynthesis occurs in green plant organs containing mesophyll cells and chlorophyll pigment.
    • Plants absorb water (H2O) from soil and carbon dioxide (CO2) from the air during photosynthesis.
    • Electron molecules from sunlight are used in the photosynthetic process.

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    Description

    Discover the reasons behind the medicinal properties of plants in this lecture. Explore how plants produce biologically active chemicals to enhance their own survival, inhibit the growth of competing plants, and deter browsing by insects and herbivores.

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