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IB Biology SL A3.1.3 Binomial System Questions

Practise IB Biology SL A3.1.3 by applying genus and species names, reading binomial nomenclature and using shared names to infer relatedness.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Identify the genus and species in a binomial name, applying the rules for capitalization, lowercase spelling and italics or underlining.
  • Use a shared genus to infer which species are most closely related and distinguish species assigned to different genera.
  • Explain how universal, unique binomial names avoid common-name confusion and support clear biological communication.

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Study A3.1.3—Binomial system conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology SL A3.1.3 Binomial System Questions question 1

[Maximum number: 1]

The image represents the structure of the enzyme Rubisco from common pea (Pisum sativum).

Figure for Question IB Biology SL A3.1.3 Binomial System Questions question 1 — IB Biology SL

State the genus of the plant where this Rubisco is found.

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