What does the b6 F complex generate?
Electron transport via cytochrome b6f is responsible for creating the proton gradient that drives the synthesis of ATP in chloroplasts. In a separate reaction, the cytochrome b6f complex plays a central role in cyclic photophosphorylation, when NADP+ is not available to accept electrons from reduced ferredoxin.
What is ETS photosynthesis?
Definition. Photosynthetic electron transport describes the process of light-induced electron transport for generating chemical energy and reducing equivalents in phototrophic organisms.
What is ps1 in photosynthesis?
Photosystem I is an integral membrane protein complex that uses light energy to catalyze the transfer of electrons across the thylakoid membrane from plastocyanin to ferredoxin. Ultimately, the electrons that are transferred by Photosystem I are used to produce the moderate-energy hydrogen carrier NADPH.
What is the function of the b6 F complex quizlet?
What is the function of the b6-f complex? The b6-f complex receives electrons from PQ and passes them to plastocyanin (PC). This provides energy for the b6-f complex to pump protons into the thylakoid.
What is the role of plastocyanin in photosynthesis?
Plastocyanin is a copper-containing protein that plays a role in the electron transport process associated with photosynthesis. It serves as an electron transfer agent between the cytochrome complex which follows Photosystem II and the entry point to Photosystem I of the non-cyclic electron transfer process.
How does ETC produce ATP?
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.
What is ps1 and ps2?
Photosystem I (PS I) and photosystem II (PS II) are two multi-subunit membrane-protein complexes involved in oxygenic photosynthesis. The main difference between photosystem 1 and 2 is that PS I absorbs longer wavelengths of light (>680 nm) whereas PS II absorbs shorter wavelengths of light (<680 nm).
What is the function of ferredoxin NADP reductase?
Function. Ferredoxin: NADP+ reductase is the last enzyme in the transfer of electrons during photosynthesis from photosystem I to NADPH. The NADPH is then used as a reducing equivalent in the reactions of the Calvin cycle.
What is the role of Plastocyanin in photosynthesis in plants )? Quizlet?
What is the role of plastocyanin in photosynthesis (in plants)? It carries electrons from the b6-f complex to photosystem I.
What is P680 and P700?
Both photosystems contain many pigments that help collect light energy, as well as a special pair of chlorophyll molecules found at the core (reaction center) of the photosystem. The special pair of photosystem I is called P700, while the special pair of photosystem II is called P680.
What is the general equation for photosynthesis?
The general equation for photosynthesis as first proposed by Cornelis van Niel is therefore: CO 2 carbon dioxide + 2H 2 A electron donor + photons light energy → [CH 2 O] carbohydrate + 2A oxidized
What is the overall chemical reaction in photosynthesis?
Photosynthesis Overall Chemical Reaction. Photosynthesis is the process in plants and certain other organisms that uses the energy from the sun to convert carbon dioxide and water into glucose (a sugar) and oxygen.
Why do we memorize the photosynthesis equation and respiration equation?
If you memorize the photosynthesis equation, you’ve also memorized the cellular respiration equation. That’s because respiration is the exact opposite as photosynthesis with one small difference.
What is the process of photosynthesis?
Ans: Photosynthesis is the process in which green plants traps sunlight and use it to make their food. It requires sunlight, chlorophyll, water, and carbon dioxide gas. Chlorophyll traps energy from sunlight, and plants use this light energy to change water and carbon dioxide into oxygen and sugars.