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The chain is organized in the cristae lumen membrane, i.e. the membrane inside the junction. [5] The electrons from each NADH molecule can form a total of 3 ATP's from ADPs and phosphate groups through the electron transport chain, while each FADH 2 molecule can produce a total of 2 ATPs.
The inner membrane is a phospholipid bilayer that contains the complexes of oxidative phosphorylation. which contains the electron transport chain that is found on the cristae of the inner membrane and consists of four protein complexes and ATP synthase.
The carriers in the electron transport chain use some of the electron's energy to actively transport protons from the stroma to the lumen. During photosynthesis, the lumen becomes acidic, as low as pH 4, compared to pH 8 in the stroma. [30] This represents a 10,000 fold concentration gradient for protons across the thylakoid membrane.
The end of cristae are partially closed by transmembrane protein complexes that bind head to head and link opposing crista membranes in a bottleneck-like fashion. [2] For example, deletion of the junction protein IMMT leads to a reduced inner membrane potential and impaired growth [ 3 ] and to dramatically aberrant inner membrane structures ...
The thylakoid membrane encloses a single, continuous aqueous compartment called the thylakoid lumen. [7] These are the sites of light absorption and ATP synthesis, and contain many proteins, including those involved in the electron transport chain. Photosynthetic pigments such as chlorophylls a,b,c and some others, e.g., xanthophylls ...
This chain of electron acceptors is known as an electron transport chain. When this chain reaches PSI, an electron is again excited, creating a high redox-potential. The electron transport chain of photosynthesis is often put in a diagram called the Z-scheme, because the redox diagram from P680 to P700 resembles the letter Z. [3]
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