What is the photosystem 1 and 2?
Photosystem I (PS I) and photosystem II (PS II) are two multi-subunit membrane-protein complexes involved in oxygenic photosynthesis. Chlorophyll is the pigment involved in capturing light energy. PS 1 contains chlorophyll B, chlorophyll A-670, Chlorophyll A-680, chlorophyll A-695, chlorophyll A-700 and carotenoids.
What are three main differences between photosystem 1 and photosystem 2?
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| Photosystem I (PS I) | Photosystem II (PS II) |
|---|---|
| Pigments absorb longer wavelengths of light (>680nm). | Pigments absorb shorter wavelengths of light (<680nm). |
| Rich in chlorophyll a than chlorophyll-b | Rich in chlorophyll b than chlorophyll-a |
What is the difference between photosystem 1 and 2 quizlet?
Photosystem 1 has p700 chlorophyll a as reaction center. Second choice is instead of passing electrons down ETC pass electron to ferodoxin and then to NADP reductase which reduces NADP to NADPH.
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 are photosystem 1 and 2 made of?
There are two types of photosystems: photosystem I (PSI) and photosystem II (PSII). 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.
Where does PS1 occur?
Photosystem I (PS I) and II (PS II) are found in the thylakoid membranes inside the chloroplast. The photosystems are responsible for carrying out photochemical phase or light reaction of photosynthesis.
What is the function of photosystem 2?
Photosystem II (PSII) is a multi-component pigment-protein complex that is responsible for water splitting, oxygen evolution, and plastoquinone reduction.
What does photosystem 2 do in photosynthesis?
Photosystem II (PSII) is a membrane protein supercomplex that executes the initial reaction of photosynthesis in higher plants, algae, and cyanobacteria. It captures the light from the sun to catalyze a transmembrane charge separation.
What is PS1 in botany?
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.
Where is PS1 located in chloroplast?
thylakoid membranes
Photosystem I (PS I) and II (PS II) are found in the thylakoid membranes inside the chloroplast. The photosystems are responsible for carrying out photochemical phase or light reaction of photosynthesis.
What is PS1 and PS2 in photosynthesis?
The key difference between both the photosystems – Photosystem I and photosystem II is that PS I tends to absorb light of longer wavelengths > 680nm, whereas PS II absorbs light of shorter wavelengths <680 nm.
What is the difference between photosystem 1 and 2?
Photosystem II is located in at the inner surface of grana of thylakoid. Photosystem I has larger binding proteins. Photosystem II has smaller binding proteins. What is Photosystem I? Photosystem I is one of the systems of photosystems involved in photosynthesis.
What is the best subject for two-point perspective photographs?
Buildings are the easiest subjects for making two-point perspective photographs. If you are photographing architecture, stand at one corner of the building. It is simple to compose the picture from there, which I will present in the next step.
What is the role of protons in photosystem II?
Photosystem II. The hydrogen ions (protons) generated by the oxidation of water help to create a proton gradient that is used by ATP synthase to generate ATP. The energized electrons transferred to plastoquinone are ultimately used to reduce NADP+ to NADPH or are used in Non cyclic photophosphorylation.
What are the accession codes for photosystem II dimers?
ions per monomer. There are several crystal structures of photosystem II. The PDB accession codes for this protein are 3WU2, 3BZ1, 3BZ2 (3BZ1 and 3BZ2 are monomeric structures of the Photosystem II dimer), 2AXT, 1S5L, 1W5C, 1ILX, 1FE1, 1IZL.