Asked in PMC Practice Test 10 (2021) 2021Moderate

According to vital force theory organic compounds were only produced in _?

Correct answer: D. All of these

  • A. Animals
  • B. Plants
  • C. Bacteria
  • D. All of these

Explanation

Option A: According to the vital force theory, animals were considered to possess a vital force or vital principle that enabled them to produce organic compounds. This theory suggested that organic substances found in animals, such as proteins, fats, and carbohydrates, were not possible to be synthesized artificially or outside of living organisms. Option B: Similarly, the vital force theory proposed that plants also had a vital force that allowed them to produce organic compounds. This theory attributed the synthesis of organic substances found in plants, including sugars, cellulose, and various secondary metabolites, to their vital force. Option C: The vital force theory extended its concept to bacteria as well. It suggested that bacteria possessed a vital force that facilitated the production of organic compounds within their cells. This theory considered bacteria as living organisms capable of synthesizing various organic substances required for their growth and survival. Option D: The vital force theory, organic compounds were believed to be exclusively produced in all living organisms, including animals, plants, and bacteria. The theory proposed that the synthesis of organic substances was a characteristic feature of living organisms and could not be replicated artificially outside of them.

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About Classification of Organic Compounds

Organic compounds are classified by carbon skeleton into open-chain, branched-chain and cyclic compounds, including homocyclic and heterocyclic types. The classification also uses functional groups to distinguish hydrocarbons, halo compounds, alcohols, aldehydes, ketones, carboxylic acids and their derivatives, which is different from naming compounds by IUPAC rules.

Practise Fundamental Principles of Organic Chemistry

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