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PSI (Photosystem I) and PSII (Photosystem II) are two different protein complexes in the thylakoid membrane of chloroplasts involved in the light-dependent reactions of photosynthesis. PSII functions first in the electron transport chain by absorbing light energy to oxidize water and generate oxygen, while PSI receives electrons from PSII and drives the production of NADPH for the Calvin cycle.
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What is the difference between psi and pascals?
Psi (pounds per square inch) is a unit of pressure commonly used in the United States, while pascals (Pa) are the SI unit of pressure. 1 psi is approximately equal to 6895 Pa.
What is the difference between psi and bar?
Psi (pounds per square inch) and bar (force per unit area) are both units of pressure. However, psi is commonly used in the United States, while bar is more commonly used in countries that use the metric system. 1 bar is equal to approximately 14.5 psi.
What is the relation between Psi and inches of Hg?
Psi (pounds per square inch) and inches of Hg (inches of mercury) are both units of pressure measurement. To convert between them, you can use the conversion factor that 1 psi is approximately equal to 2.036 inches of Hg. This conversion factor allows you to relate pressure values in psi to inches of Hg and vice versa.
What the psi in your radiator?
PSI stands for pounds per square inch, which is a unit of pressure. The typical pressure range for a radiator system is between 12-18 psi when the engine is cold. It is important to check and maintain proper pressure to ensure optimal cooling efficiency and prevent overheating.
How much is one standard atmosphere 7.5 psi 12.5 psi 14.7 psi or 1.5 psi?
One standard atmosphere is equivalent to 14.7 psi.
Are the chlorophyll molecules in PSI and PSII the same?
No, the chlorophyll molecules in Photosystem I (PSI) and Photosystem II (PSII) are not the same. They differ in absorption spectra and redox properties, allowing them to play distinct roles in the light reactions of photosynthesis.
Why photolysis of water takes place at PSII and not at PSI in thallakoid channel?
Photolysis of water occurs at Photosystem II (PSII) because it has a higher oxidation potential than Photosystem I (PSI). This higher potential allows PSII to extract electrons from water molecules during the light-dependent reactions of photosynthesis. Additionally, the location of the water-splitting complex is specific to PSII, where it is positioned near the oxygen-evolving complex that facilitates water splitting.
What are the clusters of photosystems?
The two clusters of photosystems in plants are Photosystem I (PSI) and Photosystem II (PSII). PSII functions first in the photosynthetic electron transport chain, followed by PSI, and they work together to absorb light energy and carry out the reactions of photosynthesis.
How is H electrochemical gradient established and maintained in photosynthesis?
The formation of NADPH, the movement of electrons from PSII to PSI, & the splitting of water
What special pigment do plant cells contain?
Chlorophyll in the chloroplasts and other accesory pigments (p680 in PSII and p700 in PSI)
What is the difference between 3500 psi concrete and 4000 psi concrete?
500psi
What photosystems are embedded in the electron transport chain?
PSII, PSI, cytocromes, ferrodoxins are the part of ETC. They transport the protons to ATPase to produce ATP.
How are the chlorophyll molecules in PSI and PSII reset?
The chlorophyll molecules in Photosystem I (PSI) and Photosystem II (PSII) are reset when an electron is donated to them from an external source, such as when water is split during the light-dependent reactions of photosynthesis. This replenishes the electrons lost during the light-harvesting process, allowing the chlorophyll molecules to continue their role in capturing and transferring light energy.
What is the compression on a Chevy 366?
150 psi per cylinder with +/- 20 psi difference between cylinders
Write the equation connecting photo system 1 and photosystem 2?
The equation connecting Photosystem I (PSI) and Photosystem II (PSII) in photosynthesis is: 2H2O + 2NADP+ + 8 photons (light) → O2 + 2NADPH + 2H+ + 8 photons (light). This represents the light-dependent reactions in the thylakoid membrane where PSII and PSI work together to drive the production of energy carriers like ATP and NADPH.
What range should the cyl pressure be on a 1983 305 cu engine?
around 150 psi....no more than 20 psi difference between cylinders.
What should the cylinder pressure be on a 1991 Toyota Cressida?
HI, Compression should be 128 to 156 psi, with no more than 14 psi. difference between cylinders.
