Where in a chloroplast do the light-dependent reactions occur?
Answer and explanation
Correct answer: C. On the thylakoid membranes
- Step 1: Photosystems and the electron transport chain are embedded in the thylakoid membranes. Step 2. The Calvin cycle occurs in the stroma. Answer: On the thylakoid membranes. Why not the others: the stroma is the site of the light-independent reaction; the envelope has no photosystems; the thylakoids, not the intermembrane space, hold the pigments.
Practise more Photosynthesis and respiration.
Free questions with an explanation for every one, and full timed A-Level UK (AQA, Edexcel, OCR) mock tests.
More Photosynthesis and respiration questions
- What are the products of photolysis of water in the light-dependent reaction?
- In the Calvin cycle, what is the first stable product formed when carbon dioxide combines with ribulose bisphosphate?
- A graph shows the rate of photosynthesis levelling off as light intensity increases at 20 degrees Celsius and 0.04% carbon dioxide. What is…
- What is the net yield of glycolysis from one molecule of glucose?
- What happens in the link reaction?
- What is the role of oxygen in aerobic respiration?