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BIO NMDCAT Concept of Evolution
nmdcat.online July 14, 2026

8. Which sequence best represents the proposed events in the origin of life according to chemical evolution?

A. Living cells → amino acids → inorganic molecules → protocells
B. Inorganic molecules → organic molecules → protocells → first living cells
✓
C. Organic molecules → inorganic molecules → living cells → protocells
D. Protocells → inorganic molecules → amino acids → bacteria

📝 Explanation

Correct: This sequence reflects the accepted model of chemical evolution. A, C, D: Reverse or incorrectly arrange the evolutionary sequence. Concept: Sequence of origin of life.

📖 Additional Information

  • Living cells → amino acids → inorganic molecules → protocells
  • Inorganic molecules → organic molecules → protocells → first living cells
  • Organic molecules → inorganic molecules → living cells → protocells
  • Protocells → inorganic molecules → amino acids → bacteria

Correct: This sequence reflects the accepted model of chemical evolution. A, C, D: Reverse or incorrectly arrange the evolutionary sequence. Concept: Sequence of origin of life.

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