CELL RESPIRATION
OXIDATIVE PHOSPHORYLATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The process of water moving from a high to low concentration
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The process of a substance moving based on its concentration gradient and electrical gradient
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The process of a substance diffusing from high to low concentration
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The process of using energy to move a substance against its concentration gradient.
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Detailed explanation-1: -Chemiosmosis is the movement of ions across a semipermeable membrane bound structure, down their electrochemical gradient. An important example is the formation of adenosine triphosphate (ATP) by the movement of hydrogen ions (H+) across a membrane during cellular respiration or photosynthesis.
Detailed explanation-2: -Chemiosmosis is the process of diffusion of ions (usually H+ ions, also known as protons) across a selectively permeable membrane. As in osmosis, chemiosmosis leads to a concentration gradient of the diffusing ion across the membrane.
Detailed explanation-3: -oxidative phosphorylation: A metabolic pathway that uses energy released by the oxidation of nutrients to produce adenosine triphosphate (ATP).
Detailed explanation-4: -Chemiosmosis is driven by the flow of electrons down the electron transport chain, a series of protein complexes in the membrane that forms an electron bucket brigade. Each of these protein complexes accepts and passes on electrons down the chain, and pumps a proton across the membrane for each electron it passes on.