What is the difference between photosystems one and two?

Main Difference – Photosystem 1 vs 2 Chlorophyll is the pigment involved in capturing light energy. 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 difference between photosystem I and photosystem II quizlet?

What is the difference between Photosystem II and Photosystem I? Photosystems II and I have different chlorophylls. PS II has P680 and PS I has P700. Photosystem II comes before Photosystem I.

What is the function of the photosystems II and I?

During this process, the water-splitting and oxygen-evolving reaction is catalyzed by photosystem II (PSII), while photosystem I (PSI) generates the reducing power for the reduction of NADP+ to NADPH.

What are the two types of photosystems differentiate these two types?

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.

What is the difference between the roles of photosystem 1 and 2 in photosynthesis quizlet?

Photosystem I produces NADPH, which is similar in function to the NADH and FADH2 produced by the citric acid cycle. NADPH is an electron carrier that can donate electrons to other compounds and thus reduce them. Photosystem II produces a proton gradient that drives the synthesis of ATP.

Why is it necessary to have both photosystem 1 and 2?

Both photosystem I and II are required for oxygenic photosynthesis. Oxygenic photosynthesis can be performed by plants and cyanobacteria; cyanobacteria are believed to be the progenitors of the photosystem-containing chloroplasts of eukaryotes.

What is the function of photosystem 1?

Photosystem I is one of the two membrane-bound photosystems of plants, algae and cyanobacteria that mediate light-driven electron transport from water to NADPH.

What is the role of photosystem 1 in photosynthesis?

Photosystem I (PSI) of photosynthesis provides reducing power to reduce NADP to NADPH, which is required for carbon fixation and other synthetic processes.

What is the function of photosystem?

Photosystems are the functional units for photosynthesis, defined by a particular pigment organization and association patterns, whose work is the absorption and transfer of light energy, which implies transfer of electrons. Physically, photosystems are found in the thylakoid membranes.

How do the reaction centers of photosystem 1 and 2 differ?

How do the reaction centers of photosystem I and II differ? a. They preferentially absorb slightly different wavelengths of light. Only photosystem I is found in the thylakoid membranes.

What is the main function of photosystem 1?

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 the functions of photosystem I and photosystem II in plants photosystem I photosystem II?

What is the difference between photosystem 1 and photosystem 2?

The pigments in the photosystem 1 absorb longer wavelengths of light which is 700 nm (P700). The pigments in the photosystem2 absorb shorter wavelengths of light which is 680 nm (P680). Photophosphorylation. This system is involved in both cyclic as well as non-cyclic photophosphorylation.

What is the photocenter of photosystem 1 and 2?

Photosystem 1: The photocenter of the photosystem 1 is P700. Photosystem 2: The photocenter of the photosystem 2 is P680. Photosystem 1: Pigments absorb longer wavelengths of light (>680 nm).

How does photosystem I work?

Photosystem I has a reaction centre that possesses chlorophyll-a molecules. It is capable of absorbing light at a wavelength of 700 nm. The light-harvesting or antenna complex of PS I absorbs photons and hand them over to its reaction centre containing chlorophyll-a. The reaction centre excites and releases high energy electrons.

What is the active reaction center of photosystem 1 and 2?

Chlorophyll A-700 is the active reaction center of PS 1. PS 2 contains chlorophyll B, chlorophyll A-660, chlorophyll A-670, chlorophyll A-680, chlorophyll A-695, chlorophyll A-700, phycobilins and xanthophylls. Chlorophyll A-680 is the active reaction center of photosystem 2.