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

31. During the origin of life, why are amino acids considered biologically significant?

A. They directly formed complete cells.
B. They served as building blocks for proteins.
✓
C. They functioned as genetic material.
D. They produced atmospheric oxygen.

📝 Explanation

Correct: Amino acids polymerized to form proteins, which are essential for cellular structure and function. A: Cells require many additional components. C: Genetic material is DNA or RNA. D: Oxygen production began much later with photosynthetic organisms. Concept: Importance of amino acids in chemical evolution.

📖 Additional Information

  • They directly formed complete cells.
  • They served as building blocks for proteins.
  • They functioned as genetic material.
  • They produced atmospheric oxygen.

Correct: Amino acids polymerized to form proteins, which are essential for cellular structure and function. A: Cells require many additional components. C: Genetic material is DNA or RNA. D: Oxygen production began much later with photosynthetic organisms. Concept: Importance of amino acids in chemical evolution.

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