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The electron transport chain uses the high-energy electrons from the Krebs cycle to convert ADP into ATP.
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What role do high-energy electrons play in the electron transport chain?
High-energy electrons play a crucial role in the electron transport chain by transferring their energy to pump protons across the inner mitochondrial membrane, which generates a proton gradient. This gradient is used to drive ATP synthesis during oxidative phosphorylation, providing cells with the energy needed for various processes.
What are fadh2 and nadh classified as?
FADH2 and NADH are classified as electron carriers in cellular respiration. They play a key role in transferring electrons to the electron transport chain, where the energy from these electrons is used to generate ATP through oxidative phosphorylation.
What is the purpose of electron carriers in cellular respiration?
The purpose of electron carriers such as NADH and FADH2 is to dump electrons at the electron transport chain. This creates a proton gradient and allows oxidative phosphorylation to take place.
What electron carrier function in the Krebs cycle?
NAD+ and FAD are electron carriers that function in the Krebs cycle to accept and transport electrons from various reactions within the cycle. They play a crucial role in transferring these electrons to the electron transport chain for ATP production.
What role do high energy electron carriers play in cellular respiration?
High energy electron carriers, such as NADH and FADH2, play a crucial role in cellular respiration by transferring electrons to the electron transport chain. This process generates ATP, the cell's main energy source, through a series of redox reactions.
What roles do electrons and hydrogen ions play in light-dependent reactions of photosynthesis?
Electrons excited out of the reaction centre in the photosystems are carried along a chain. The electron transport chain pumps protons, just like the respiratory complexes, and the electrons are eventually dumped onto NADP to form NADPH. Protons flow back through ATP synthase, generating ATP.
What is electron transport chair?
The electron transport chain (ETC) is a series of protein complexes and other molecules located in the inner mitochondrial membrane that play a crucial role in cellular respiration. It facilitates the transfer of electrons from electron donors like NADH and FADH2 to electron acceptors such as oxygen, driving the production of ATP through oxidative phosphorylation. As electrons move through the chain, protons are pumped across the membrane, creating a proton gradient that powers ATP synthase. This process is essential for generating energy in aerobic organisms.
What is the role of molecules such as nadh nadh and fadh in metabolic?
NADH and FADH2 act as electron carriers in metabolic pathways, transferring electrons to the electron transport chain to generate ATP through oxidative phosphorylation. These molecules play a crucial role in the production of energy in the form of ATP during cellular respiration.
When is the electron transport chain carried out?
Plants, fungi, and animals are all eukaryotes and possess mitochondria, which is the site of the electron transport chain. Prokaryotes have no mitochondria and perform the electron transport chain across their cell membranes. Electron transport chain also occurs in thylakoid membrane of chloroplasts.
What metabolic processes involves enzymes located in the membranes of mitochondria?
The electron transport chain and oxidative phosphorylation are metabolic processes that involve enzymes located in the inner mitochondrial membrane. These enzymes play a crucial role in producing ATP, the cell's primary energy source, through the transfer of electrons along the chain.
What are the functions of NAD and FAD?
To oxidize the intermediate products of glycolysis and the citric acid cycle and then, in reduced state, take their electrons and hydrogens to the systems of the electron transport chain where ATP production is the ultimate result.NAD + --> NADHFAD + --> FADH2
Where are molecules of electron transport chain found in plant cells?
thylakoid membranes of chloroplasts
