Photosystems are located in:
Correct answer: C. Thylakoid membranes
- A. Stroma
- B. Chloroplast envelope
- C. Thylakoid membranes
- D. The intergrana
Explanation
The thylakoid membrane systems of cyanobacteria and of plant and algal chloroplasts contain the specialized photosystems, photosystem I (PSI), and photosystem II (PSII), in which the reaction centers photochemically transform light energy into usable chemical energy in the form of ATP and NADPH through photosynthetic electron transport (PET).
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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