IB Biology HL B2.2.5 Hl Chloroplast Adaptations Questions
Explore how chloroplast compartments, thylakoid surface area and proton gradients support photosynthesis in IB Biology HL B2.2.5.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Identify chloroplast thylakoids, grana and stroma in diagrams or micrographs.
- Explain how grana/thylakoid surface area, photosystems and small thylakoid spaces support light-dependent electron transport and proton gradients.
- Relate stroma enzymes and suitable conditions to carbon fixation and the Calvin/light-independent reactions.
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IB Biology HL B2.2.5 Hl Chloroplast Adaptations Questions question 1
The image shows part of a chloroplast and was produced by electron tomography.
What is the name of I and which reactions of photosynthesis occur in II?
Name of I
Reactions in II
Matrix
Light-independent reactions
Stroma
Light-independent reactions
Matrix
Light-dependent reactions
Stroma
Light-dependent reactions
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