An action spectrum shows

  1. the rate of photosynthesis at different wavelengths
  2. the structure of chloroplasts
  3. the absorption of each pigment
  4. the Rf values
Answer

A) the rate of photosynthesis at different wavelengths

Action = rate. AS & A Level Biology · Topic 13 Photosynthesis · 13.1 Photosynthesis as an energy transfer process

Biology MCQ · More A Level Biology: Photosynthesis MCQs · Practise