IB Biology HL 1.3.15 Carbon fixation by Rubisco Question Bank
Practise IB Biology HL 1.3.15 by applying carbon fixation by rubisco concepts to exam-style questions.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- identify the relevant biological structure, process or evidence
- apply the correct biological mechanism to the question
- evaluate the result using data, adaptation or ecological reasoning
C1.3.15 (HL)—Carbon fixation by Rubisco question 1
[Maximum number: 2]
In some boreal species, Rubisco is down-regulated during the winter months. Describe the role of Rubisco in photosynthesis.
a. carbon fixation/fixes carbon dioxide/carboxylation
OR
rubisco is used in the Calvin cycle/light independent stage
b. carbon dioxide linked to RuBP/ribulose bisphosphate «by rubisco»
c. glycerate 3-phosphate/glycerate phosphate produced «by rubisco»
2 max
All question bank results loaded