UPSC MainsBOTANY-PAPER-I201915 Marks
Q16.

Write botanical names and families of the plants yielding beverages, narcotics and gums.

How to Approach

This question requires a systematic listing of plants based on their economic uses – beverages, narcotics, and gums. The answer should be structured into three main sections, one for each category. Within each section, provide the botanical name (scientific name) and the family to which the plant belongs. Prioritize commonly known and economically significant plants. A tabular format can be used for clarity. Focus on providing accurate botanical information.

Model Answer

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Introduction

Plants have been integral to human civilization, providing not only sustenance but also materials for various industries and cultural practices. Beverages, narcotics, and gums represent significant economic and cultural contributions from the plant kingdom. The utilization of these plant products dates back centuries, with many having deep roots in traditional medicine and societal customs. Understanding the botanical origins of these substances is crucial for both scientific and economic perspectives. This answer will detail the botanical names and families of plants yielding these important products.

Plants Yielding Beverages

Beverages derived from plants are consumed globally and hold significant economic value. These range from stimulating drinks like tea and coffee to fermented beverages like beer and wine.

  • Tea (Camellia sinensis): Family – Theaceae
  • Coffee (Coffea arabica & Coffea robusta): Family – Rubiaceae
  • Cocoa (Theobroma cacao): Family – Malvaceae
  • Grapevine (Vitis vinifera): Family – Vitaceae (used for wine production)
  • Barley (Hordeum vulgare): Family – Poaceae (used for beer production)

Plants Yielding Narcotics

Narcotics, derived from plants, have a long history of medicinal and recreational use, but also carry significant risks of addiction and abuse. These plants contain alkaloids and other compounds that affect the central nervous system.

  • Opium Poppy (Papaver somniferum): Family – Papaveraceae (source of morphine, codeine, and heroin)
  • Cannabis (Cannabis sativa): Family – Cannabaceae (source of marijuana, hashish, and THC)
  • Coca (Erythroxylum coca): Family – Erythroxylaceae (source of cocaine)
  • Henbane (Hyoscyamus niger): Family – Solanaceae (contains scopolamine and hyoscyamine)

Plants Yielding Gums

Gums are complex carbohydrates exuded by plants, often as a protective mechanism. They have diverse applications in industries like food, pharmaceuticals, and cosmetics.

  • Gum Arabic (Acacia senegal & Acacia nilotica): Family – Fabaceae (Leguminosae)
  • Ghatti Gum (Anogeissus latifolia): Family – Combretaceae
  • Kondagogu Gum (Sterculia urens): Family – Malvaceae
  • Babool Gum (Acacia arabica): Family – Fabaceae (Leguminosae)
  • Tara Gum (Caesalpinia tarapitha): Family – Fabaceae (Leguminosae)

The following table summarizes the information for quick reference:

Category Plant (Botanical Name) Family
Beverage Tea (Camellia sinensis) Theaceae
Beverage Coffee (Coffea arabica) Rubiaceae
Narcotic Opium Poppy (Papaver somniferum) Papaveraceae
Narcotic Cannabis (Cannabis sativa) Cannabaceae
Gum Gum Arabic (Acacia senegal) Fabaceae
Gum Kondagogu Gum (Sterculia urens) Malvaceae

Conclusion

In conclusion, plants serve as vital sources of beverages, narcotics, and gums, each with unique botanical origins and economic significance. The diversity within these categories highlights the vast potential of the plant kingdom for human benefit. However, responsible utilization and sustainable harvesting practices are crucial to ensure the long-term availability of these resources and to mitigate the negative consequences associated with certain plant-derived substances, particularly narcotics. Further research into plant biochemistry and genetic improvement can unlock even greater potential from these valuable botanical resources.

Answer Length

This is a comprehensive model answer for learning purposes and may exceed the word limit. In the exam, always adhere to the prescribed word count.

Additional Resources

Key Definitions

Alkaloid
Alkaloids are naturally occurring organic compounds containing nitrogen, often with significant physiological effects on humans. Many narcotics contain alkaloids.
Galactomannan
Galactomannans are polysaccharides composed of a mannan backbone with galactose side chains. Guar gum is a prominent example of a galactomannan.

Key Statistics

The global tea market was valued at USD 48.49 billion in 2023 and is expected to grow at a CAGR of 5.2% from 2024 to 2030.

Source: Grand View Research, 2024

India accounts for approximately 80% of the world’s total guar gum production as of 2023.

Source: Export Promotion Council for Handicrafts (EPCH), 2023

Examples

Opium Wars

The Opium Wars (1839-1842 and 1856-1860) between Britain and China were triggered by the British trade of opium (derived from <em>Papaver somniferum</em>) to China, despite the Chinese government's attempts to ban it.

Frequently Asked Questions

What is the difference between morphine and heroin?

Both are derived from the opium poppy, but heroin is a semi-synthetic opioid created by chemically modifying morphine. Heroin is more potent and has a higher risk of addiction.

Topics Covered

BotanyEconomic BotanyPlant TaxonomyMedicinal PlantsIndustrial Plants