Molecules of life -- Is H2O a biomolecule?

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Discussion Overview

The discussion centers around whether H2O (water) qualifies as a biomolecule, exploring definitions and roles of molecules in biological systems. It examines the context in which the term "biomolecule" is used and the implications of including water in this category.

Discussion Character

  • Debate/contested

Main Points Raised

  • Some participants argue that H2O should not be classified as a biomolecule if the definition is restricted to molecules found only in biological systems, such as proteins.
  • Others propose that water plays an active role in cellular processes, suggesting it can be considered a biomolecule despite being inorganic and not carbon-based.
  • A participant notes that online definitions of biomolecules are not very specific and do not typically include H2O in their examples.
  • Another participant acknowledges the natural occurrence of water in biological systems, reinforcing its integral role.

Areas of Agreement / Disagreement

Participants express differing views on the classification of H2O as a biomolecule, with no consensus reached on the definition or inclusion of water in this category.

Contextual Notes

The discussion highlights the ambiguity in definitions of biomolecules and the varying interpretations of what constitutes a biomolecule, particularly regarding the inclusion of inorganic substances like water.

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Is H2O a biomolecule?
 
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Nikhil faraday said:
Is H2O a biomolecule?

Not if you define a "biomolecule" as occurring naturally only in certain systems which we refer to as "biological systems" such as proteins. Obviously other molecules enter into biological processes, so if you want to call them "biomolecules" in this context, go ahead. The online definitions are not very discriminating, but they don't mention H2O in the examples I've seen. It's certainly true that water acts as a biomolecule.
 
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Thank you very much.wonderful answer
 
Yes, water has such an active role in cellular processes that it is often considered a biomolecule. Although most biomolecules are carbon-based and water is not organic, it is naturally integrated into biological systems (natural occurrence).
 
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