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A recent international study has revalidated the 1960s experiments by Indian scientists Krishna Bahadur and S. Ranganayaki on the origin of life.
The couple created 'Jeewanu', microscopic cell-like structures formed spontaneously from inorganic matter under simulated primitive Earth conditions.
Their pioneering work, which explored the concept of abiogenesis, is now gaining renewed international recognition.
This research highlights India's historical contributions to fundamental scientific theories regarding the emergence of life.
'Jeewanu', a term coined by Krishna Bahadur, refers to microscopic, cell-like structures that he synthesized in his laboratory. These structures were formed spontaneously from inorganic substances like ammonium molybdate, diammonium hydrogen phosphate, and mineral solutions, when exposed to sunlight. They exhibited some properties associated with living cells, such as growth, multiplication, and metabolic activity, though they were not considered truly living organisms. This experiment was a significant contribution to the study of abiogenesis, the scientific theory that life can arise from non-living matter through natural processes, without divine intervention. It provided a tangible model for how early proto-cells might have formed on primitive Earth.
Simple Analogy: Imagine mixing basic chemical ingredients (like water, salts, and simple compounds) and, without any pre-existing life, observing the spontaneous formation of tiny, organized 'bags' that can grow and divide, just by exposing them to energy like sunlight. 'Jeewanu' were these 'proto-cells' forming from fundamental chemical building blocks under conditions thought to resemble early Earth.
This hypothesis proposed that life arose gradually from inorganic matter through a process of 'chemical evolution' in a 'primordial soup'. Bahadur's 'Jeewanu' experiments provided experimental evidence supporting the possibility of such spontaneous formation of complex structures from simple precursors.
This famous experiment demonstrated that organic compounds (like amino acids) could be formed spontaneously from inorganic precursors under simulated early Earth conditions. Bahadur's work took this a step further by showing the formation of more complex, cell-like structures, bridging the gap between simple organic molecules and proto-cells.
GS Paper III: Science and Technology – Developments in Science and Technology; Indigenization of technology and developing new technology. GS Paper I: History of Science in India.
General Science (Biology, Chemistry).
General Science (Biology, Chemistry).
General Science.
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Medium (Origin of life is a recurring theme in general science, but specific Indian contributions are less frequently highlighted, making this article significant for historical and scientific recognition).
The natural process by which life arises from non-living matter, such as simple organic compounds.
Microscopic, cell-like structures synthesized by Krishna Bahadur from inorganic materials under simulated primitive Earth conditions.
A hypothetical set of conditions on early Earth where organic molecules could have formed spontaneously from inorganic precursors.