LABORATORY REVIEW
CELL RESPIRATION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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inner mitochondrial membrane
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cytoplasm
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cell membrane
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chloroplast
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Detailed explanation-1: -The ETC is a collection of proteins bound to the inner mitochondrial membrane and organic molecules, which electrons pass through in a series of redox reactions, and release energy. The energy released forms a proton gradient, which is used in chemiosmosis to make a large amount of ATP by the protein ATP-synthase.
Detailed explanation-2: -The electron transport chain is a series of proteins and organic molecules found in the inner membrane of the mitochondria.
Detailed explanation-3: -In eukaryotes, the electron transport chain is located in the inner mitochondrial membrane. In prokaryotes, it is located within the plasma membrane. Electrons move through the electron transport chain from a higher to lower energy state.
Detailed explanation-4: -The inner mitochondrial membrane transduces energy through oxidative phosphorylation, the main process responsible for the production of energy in the form of ATP in eukaryotic cells (Saraste, 1999).
Detailed explanation-5: -At the inner mitochondrial membrane, a high energy electron is passed along an electron transport chain. The energy released pumps hydrogen out of the matrix space. The gradient created by this drives hydrogen back through the membrane, through ATP synthase.