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Multiple Choice
Which of the following processes occurs in both photosynthesis and cellular respiration?
A
Fermentation
B
Calvin cycle
C
Electron transport chain
D
Glycolysis
Verified step by step guidance
1
Understand the context of the question: Photosynthesis and cellular respiration are two fundamental biological processes that involve energy transformation in cells.
Identify the processes listed: Fermentation, Calvin cycle, Electron transport chain, and Glycolysis.
Recall that the electron transport chain is a series of protein complexes located in the inner membrane of mitochondria (in cellular respiration) and in the thylakoid membrane of chloroplasts (in photosynthesis).
Recognize that both photosynthesis and cellular respiration involve an electron transport chain to create a proton gradient that drives ATP synthesis.
Conclude that the electron transport chain is the process common to both photosynthesis and cellular respiration, as it plays a crucial role in energy conversion in both processes.