Origin of life
ICSE · Class 12 · Biology
Practice quiz for Origin of life — ICSE Class 12 Biology. MCQs and questions with answers to test your preparation.
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Quick Quiz: Origin of life
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The Big Bang theory explains the origin of:
Earth was formed approximately:
The primitive atmosphere of Earth was:
Which of the following gases was NOT present in the primitive atmosphere?
Sample Questions
The theory of spontaneous generation was supported by:
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Aristotle and Van Helmont
Aristotle (384–322 BC) and Van Helmont (1577–1644) supported spontaneous generation — the idea that life arises from non-living matter.
Pasteur's experiment used a:
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Swan-necked (S-shaped) flask
Pasteur used flasks with S-shaped necks. Air could enter, but organisms in the air were trapped at the bend, keeping the broth sterile.
The biochemical origin of life theory was proposed by:
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Oparin and Haldane
Aleksander I. Oparin (1924) and J.B.S. Haldane (1929) independently proposed the biochemical origin of life theory.
Haldane described the primitive ocean as:
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Hot dilute soup
Haldane called the primitive organic molecule-rich ocean the 'hot dilute soup' — emphasising its warm temperature and dilute concentration of organic compounds.
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