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Synthesis of ATP (chemiosmotic phosphorylation) ..

The immediate energy source that drives ATP synthesis by ATP synthase during oxidative phosphorylation is the

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Chemiosmosis - The Mechanism of ATP Synthesis in Chloroplasts

Figure 8.1.7 shows the movement of protons down their concentration gradient. They can only travel through the inner membrane via ATP synthase and as they do so they release energy. This energy is used by ATP synthase to convert ADP into ATP.

Explain how during light reaction of photosynthesis, ATP synthesis is a chemiosmotic phenomenon

The protons then move down the concentration gradient from the space between the inner and outer membranes back into the matrix. However, they can only move back across via an enzyme embedded in the inner membrane. This enzyme is called ATP synthase. The protons are transported back into the matrix through the channels of ATP synthase and as they do so they release energy. This energy is then used by ATP synthase to convert ADP into ATP. Since the electrons come from previous oxidation reactions of cell respiration and the ATP synthase catalyses the phosphorylation of ADP into ATP, this process is called oxidative phosphorylation. Chemiosmosis is necessary for oxidative phosphorylation to work.

chemiosmotic mechanism of ATP synthesis

Production of ATP using NADH and FADH So far we have in total, from one glucose molecule..

Step 4 - Two pyruvate molecules are formed by removing two phosphate groups from each molecule. These phosphate groups are given to ADP molecules and form ATP.

The carbon dioxide that is removed in these reactions is a waste product and is excreted from the body. The oxidations release energy which is then stored by the carriers when they accept the hydrogen. This energy is then later on used by the electron transport chain to produce ATP.

Putrescine stimulates chemiosmotic ATP synthesis | …

It plays an important role in the generation of ATP during photosynthesis ..

Inside the inner membrane of the mitochondria there is a chain of electron carriers. This chain is called the electron transport chain. Electrons from the oxidative reactions in the earlier stages of cell respiration pass along the chain. NADH donates two electrons to the first carrier in the chain. These two electrons pass along the chain and release energy from one carrier to the next. At three locations along the chain, enough energy is released to produce ATP via ATP synthase. ATP synthase is an enzyme that is also found in the inner mitochondrial membrane. FADH2 also donates electrons but at a later stage than NADH. Also, enough energy is released at only two locations along the chain by electrons from FADH2. The ATP production relies on energy release by oxidation and it is therefore called oxidative phosphorylation.

We demonstrate that putrescine increases chemiosmotic ATP synthesis ..

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  • Chemiosmotic coupling is important for ATP production in ..

    Synthesis of ATP in chloroplast can be explained by chemiosmotic hypothesis

  • transport and ATP synthesis during photosynthesis".

    chemiosmotic potential that leads to ATP synthesis.

  • and can link that to chemiosmotic synthesis of ATP.

    Photosynthetic Electron Transport and ATP Synthesis. - YouTube

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