202 1 Basic medical knowledge: NADH respiratory chain and FADH respiratory chain.

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In recent years, although the chapter of biological oxidation in biochemistry accounts for a small proportion in the examination of public institutions, biological oxidation is an important part of energy metabolism, and it is often difficult to give questions, but many knowledge points have been memorized, so it is not that difficult for us to remember. In particular, the knowledge points of NADH respiratory chain and FADH respiratory chain are easily confused by students. Some medical expert lecturers have summarized them for you, hoping to help you master them better.

First, let's look at a topic:

Which of the following is not part of succinic acid oxidation respiratory chain:

A. Flavin Mononucleotide

B. ferritin

C.CoQ

D.Cytc

Answer a.

Next, we will compare and summarize the contents of oxidative respiratory chain, hoping to help everyone.

1. oxidative phosphorylation: the oxidation process of electron transfer in respiratory chain is coupled with ADP phosphorylation to produce ATP.

2. Components of electron transfer chain:

①NADH； ② flavoprotein. ③ Iron-sulfur protein; ④ ubiquinone; ⑤ cytochrome c.

NADH oxidative respiratory chain; FADH2 oxidizes the respiratory chain.

3. Arrangement order of respiratory chain electrons

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When we master these basic knowledge points skillfully, as long as there are related problems, we can make a correct judgment at the first time.

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