How are photosystem I and II similar and different?

How are photosystem I and II similar and different?

Photosystem I is very receptive to light waves at the 700 nm wavelength. In comparison, photosystem II is very receptive to light wavelengths of around 680 nm. Both photosystem I and II are necessary in most plants to produce the energy they need from the sun.

What do both photosystem 1 and 2 have in common?

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 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. Photosystem 2’s job is to replace electrons that photosystem 1 uses to make NADPH.

How does photosystem 1 and 2 work together?

Understanding Pigments Chlorophylls and carotenoids are the two major classes of photosynthetic pigments found in plants and algae; each class has multiple types of pigment molecules. There are five major chlorophylls: a, b, c and d, along with a related molecule found in prokaryotes called bacteriochlorophyll.

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.

What is PS1 and PS2 in photosynthesis?

Difference # Photosystem II (PS II): Photosystem II (PS II) is involved only in non-cyclic photophosphorylation. 2. Photosystem II (PS II) donates electrons to photosystem I where NADP+ is reduced. 3. This system is responsible for the photolysis of water and involves the evolution of molecular oxygen.

What is ps1 and ps2 in photosynthesis?

Where are photosystem 1 and 2 found?

thylakoid membrane
Two types of photosystems, photosystem I (PSI) and photosystem II (PSII), are found in the thylakoid membrane inside the chloroplast. Each photosystem consists of multiple antenna proteins that contain a mixture of 300–400 chlorophyll a and b molecules, as well as other pigments like carotenoids.

What’s the difference between photosystem I and II?

Though the two photosystems in the light-dependent reactions got their name in the series, they were discovered, but the photosystem II (PS II) comes first in the path in the electron flow and then the photosystem I (PSI). In this content, we will explore the difference between the two types of pf photosystem and a brief description of them.

Where are photosystem 1 and 2 located in the cell?

Generally, photosystem I is referred to as PS I and photosystem II is referred to as PS II. Photosystems are located in the thylakoid membranes. A photosystem contains an antenna complex or light harvesting complex of pigment molecules and a reaction centre.

Which is the second photosystem in the light reaction?

Photosystem I (PSI, or plastocyanin-ferredoxin oxidoreductase) is the second photosystem in the photosynthetic light reactions of algae, plants, and some bacteria.

What makes up the core of photosystem 2?

Photosystem 2: The core of the PS II is made up of D1 and D2 subunits. PS I and PS II are the two photosystems which drive the light reaction of photosynthesis.