What are the similarities and differences between the photosynthetic electron transport chain and th

The mitochondrial respiratory chain is mainly composed of mitochondrial respiratory chain enzymes, because the mitochondria need to be oxidized and electron-transported through the respiratory chain are mainly NADH and FADH2, so the respiratory chain can be divided into NADH respiratory chain and FADH2 respiratory chain.

The respiratory chain is composed of complexes (NADH dehydrogenase), cytochrome C reductase, and cytochrome C oxidase, through which electrons from NADH are transported.

The respiratory chain is made up of a complex (succinate dehydrogenase), through which electrons from FADH2 do not pass through.

1) The electron transport chain is mainly composed of three complexes in series: PS, CYT B6 F, and PS on the pre-photosynthetic staring membrane. (2) There are two places in the electron transport that are inverse potential gradients, namely p680 to p680*, p700 to p700*, which are inverse potential gradients"Uphill"The noisy electron transport is driven by the absorption of light energy by the concentrating pigment complex, while the rest of the electron transport is carried out along the electric potential gradient. (3) The oxidation of water is related to PS electron transport, and the reduction of NADP is related to PS electron transport.

The final donor of electrons is water, and when water is oxidized, 4 electrons are transferred to PS, so that 2H2O produces 1 O2 and 4 H+. The final acceptor of electrons is NADP+. (4) PQ is a two-electron and double-H+ transporter, which is accompanied by electron transport, bringing H+ from the outside of the thylakoid membrane to the membrane, and together with the H+ produced by the decomposition of Kaiyu water, the H+ electrochemical potential difference inside and outside the thylakoid body is established, and the formation of ATP is promoted.

There are a total of 5 mitochondrial respiratory chain enzymes, which are NADH (also known as complex I), succinate oxidoreductase (also known as complex II), cytochrome C oxidoreductase (complex III), cytochrome C reductase (also known as complex IV), and ATP synthase (also known as complex V).

In biological cells, there are three types of carriers that accept hydrogen (or electrons) removed from metabolites – NAD+, NADP+, and FAD

Among them, NADPH does not enter the respiratory chain to synthesize ATP, but acts as a reducing agent for biosynthesis; Only NADH and FADH2 enter the respiratory chain.

Since NADH is the main thing that needs to be oxidized and electron transport through the respiratory chain in the threaded early limb detochondria, and FADH2 is less, the respiratory chain can be divided into the main and secondary respiratory chains.

Main respiratory chain (NADH respiratory chain) - the respiratory jujube chain that starts from NADH.

It is composed of complexes , and electrons from NADH pass through these three complexes in turn and are transported.

Subrespiratory (FADH2 respiratory chain) – The respiratory chain that starts with FADH2.

Composed of complexes, electrons from FADH2 do not pass through the complex

There is a difference in the ATP produced, and there is a difference in the electron transport pathway, with a difference of 2 molecules of ATP

I've never heard of mitochondria and respiratory chains.

Don't quite understand what you're talking about, what is the chemical nature of the respiratory chain?