Like the cytochromes, quinones have important roles in carrying electrons between the components of the light reactions. They can carry one or two electrons, and,… Some serve as electron acceptors in electron transport chains such as those in photosynthesis (plastoquinone, phylloquinone), and aerobic respiration (ubiquinone).
Kevin Ahern's Biochemistry Course (BB 350) at Oregon State
Small molecules called plastoquinones are found in substantial numbers in the lamellae.
Plastoquinone (pq) and ubiquinone (uq) are two important prenylquinones, functioning as electron transporters in the electron transport chain of oxygenic photosynthesis and the aerobic respiratory chain, respectively, and play indispensable roles in plant growth and development through participating in the biosynthesis and metabolism of important chemical compounds,.
Since they are lipid soluble, they can diffuse through the membrane. However, the functions of pq go far beyond photosynthesis. Plastoquinone is one of the electron acceptors associated with photosystem ii in photosynthesis. However, the functions of pq go far beyond photosynthesis.
In addition to the major photosynthetic complexes photosystem ii (psii), cytochrome b6f, and.
Then, electrons are transferred to psi where chemical energy is obtained by the transformation of light energy, i.e.,. Plastoquinone is one of the electron acceptors associated with photosystem ii in photosynthesis. Th e role of plastoquinone in photosynthesis has. However, a large fraction of the pq pool is located outside the thylakoid membranes, in the plastoglobules and the chloroplast envelopes, reflecting a wider.
Plastoquinone (plq) acts as an electron carrier between photosystem ii (psii) and the cytochrome b6f complex.
Chloroplasts, a procedure first introduced by. Among the other electron carriers of the. Metaquinone forms part of photosystem ii, a major component of radiative photosynthesis. However, a large fraction of the pq pool is located outside the thylakoid membranes, in the plastoglobules and the chloroplast envelopes, reflecting a wider.
What does plastoquinone do in photosynthesis?
Bee n investigated mainly in petrolether extracted. It accepts two electrons and is reduced to plastoquinol and as such acts as an electron and energy carrier in the electron transport process. In the electron transport process, it transports electrons as an entrapped atom and a transformed plastoquinol. However, a large fraction of the pq pool is located outside the thylakoid membranes, in the plastoglobules and the chloroplast envelopes, reflecting a wider.
Plastoquinone (pq) and ubiquinone (uq) are two important prenylquinones, functioning as electron transporters in the electron transport chain of oxygenic photosynthesis and the aerobic respiratory chain, respectively, and play indispensable roles in plant growth and development through participating in the biosynthesis.
There are other forms of plastoquinone, such as ones with shorter side chains. Plastoquinones in photosynthesis by a. This chapter describes inhibitor and plastoquinone binding to photosystem ii.
