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IB Biology HL C1.3.5 Absorption of Specific Wavelengths Questions

Practise IB Biology HL 8.3.5 by analysing absorption spectra, pigment diversity and wavelength selection in autotrophic light capture.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Compare chlorophyll and accessory-pigment absorption across red, blue and green wavelengths, including which light is reflected.
  • Interpret absorption-spectrum evidence to explain how absorbed wavelengths excite photosynthetic pigments and support photosynthesis.

IB Biology HL C1.3.5 Absorption of Specific Wavelengths Questions question 1

[Maximum number: 4]

Distinguish between the absorption of red light, blue light and green light by plants.

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