Photosystem 1 And 2 Diagram

And cytf and 3 photosystem i. Learn vocabulary terms and more with flashcards games and other study tools.

Photosynthesis Problem Set 1

2 cytochrome bf complex containing cytb 6.

Photosystem 1 and 2 diagram. How light energy is used to make atp and nadph. This system is responsible for the photolysis of water and involves the evolution of molecular oxygen. Treatment of lamellar fragments with neutral detergents releases these particles designated photosystem i and photosystem ii respectively.

Reaction center chlorophylls p700 and p680. Ps 1 contains chlorophyll b chlorophyll a 670 chlorophyll a 680 chlorophyll a 695 chlorophyll a 700 and carotenoids. In non cyclic photophosphorylation photosystem ii is associated with the photolysis of water and subsequent synthesis of atp.

Three major protein complexes are involved in running the z scheme. Photosystem i includes the following pigments. Photosystem i ps i and photosystem ii ps ii are two multi subunit membrane protein complexes involved in oxygenic photosynthesis.

Photosynthesis photosynthesis photosystems i and ii. Photosystem ii ps ii donates electrons to photosystem i where nadp is reduced. Photosystems i and ii.

Photosystem ii or ps 2 contains chlorophyll a 660 chlorophyll a 670 chlorophyll a 680 chlorophyll a 695 chlorophyll a 700 chlorophyll b xanthophylls and phycobilins. Photosystem ii unlike photosystem i contains plastoquinone which passes the energetic electron to cytochromes b6 and f but photosystem i passes the electron to ferredoxin. Chlorophyll is the pigment involved in capturing light energy.

The diagram does not show where and how atp is made. Photosystem i is associated with the. The structural and photochemical properties of the minimum particles capable of performing light reactions i and ii have received much study.

Photosystem i psi or plastocyanin ferredoxin oxidoreductase is one of two photosystems in the photosynthetic light reactions of algae plants and cyanobacteria. Photosystem ii ps ii is involved only in non cyclic photophosphorylation. Both photosystem ps i and ps ii are affected by light with wavelengths shorter than 680nm nanometer while photosystem i is affected by light with wavelengths longer than 680nm.

For a description of how the z scheme operates click here. Difference photosystem ii ps ii. Main difference photosystem 1 vs 2.

Photosystem i or ps 1 contains chlorophyll a 670 chlorophyll a 680 chlorophyll a 695 chlorophyll a 700 chlorophyll b and carotenoids. Start studying photosystem 1 and 2. Photosystem i 1 is an integral membrane protein complex that uses light energy to catalyze the transfer of electrons across the thylakoid membrane from plastocyanin to ferredoxin.

Chlorophyll b chlorophyll a 670 chlorophyll a 680 chlorophyll a 695 chlorophyll a 700 or p700 carotenoids.

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