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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2025 · Paper I, General Studies · Q96 of 120

Geo-Scientist Prelims 2025 General Studies Q96: The cooperative aggregates of microorganisms can form colonies on…

QuestionMicrobiology / biofilms

The cooperative aggregates of microorganisms can form colonies on various surfaces by secreting signalling molecules. Which one of the following phenomena explains it?

  1. (a) Biopile
  2. (b) Biomarker
  3. (c) Biofilm
  4. (d) Biomass

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