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A1.2.5—RNA as a polymer

RNA is a usually single-stranded polynucleotide containing ribose and uracil, with different RNA forms supporting protein synthesis in cells in IB Biology exam contexts.

Syllabus
First assessment 2025
Objective
A1.2.5
Level
SL

Concept essentials

  • RNA as a polymer should be described using precise molecular vocabulary.
  • Structure and information must be kept separate: backbones provide continuity while bases carry sequence meaning.
  • Exam answers should match the command term and avoid adding unsupported extra claims.
ConceptIB Biology SL