IB Biology HL 1.3.12 ATP production in thylakoids Question Bank
Practise IB Biology HL 1.3.12 by applying atp production in thylakoids 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
C1.3.12 (HL)—ATP production in thylakoids question 1
[Maximum number: 5]
A wide variety of organic compounds are used by living organisms.
Describe how ATP is produced by Photosystem II in the light-dependent stage of photosynthesis.
a. light (energy) absorbed by pigments/chlorophyll/photosystems;
b. excited electrons passed to electron carriers/electron transport chain;
c. protons/hydrogen ions pumped into thylakoid (space);
d. proton gradient/high proton concentration generated;
e. protons pass via ATP synthase to the stroma;
f. ATP synthase phosphorylates ADP/ATP synthase converts ADP to ATP;
g. photophosphorylation/chemiosmosis;
h. ATP synthase/electron carriers/proton pumps/photosystems/pigment are in the thylakoid membrane;
5 max
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