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FADH2 Reduced form of flavin adenine dinucleotide.
fallopian tubes /fə-LOPE-ee-ən/ Ducts by which ova pass from the ovaries to the uterus.
family /FAM-lee/ In taxonomy, a division of an order that itself contains one or more genera. CHART OF RELATIVE TAXONOMIC RANKS ...

FADH2 and NADH2 oxidate into FAD and NAD and liberate hydrogen ions and highly energized electrons in the beginning of the respiratory chain.

What type of metabolic reaction involves a gain of electrons by the molecule involved?
(A) Oxidation ...

Each FADH2 from the citric acid cycle can be used to generate about 2 ATP.
Why is our accounting so inexact?
There are three reasons that we cannot state an exact number of ATP molecules generated by one molecule of glucose.

FADH and ~ are reduced forms of FAD. ~ is produced in the citric acid cycle. In oxidative phosphorylation, one molecule of ~ yields approximately 1.5 ATP
Flavin mononucleotide is a prosthetic group found in NADH dehydrogenase.

2) NADH and ~ generated from glycolysis, pyruvate oxidation and the citric acid cycle are used to pump protons across a phospholipid bi-layer membrane ...

the stepwise transfer of electrons from NADH (and ~) to oxygen molecules to form (with the aid of protons) water molecules (H2O); ...

And what they do is they take the high energy electrons that are being carried by NADH or ~ and they pass them one to the next which is why collectively it's called an electron transport system.

Goal: to break down NADH and ~, pumping H+ into the outer compartment of the mitochondria
Where: the mitochondria
In this reaction, the ETS creates a gradient which is used to produce ATP, quite like in the chloroplast
Electron Transport Phosphorylation typically produces 32 ATP's ...

~ also donates electrons but at a later stage than NADH. Also, enough energy is released at only two locations along the chain by electrons from ~. The ATP production relies on energy release by oxidation and it is therefore called oxidative phosphorylation.

Between Succinic Acid and Fumaric Acid, the molecular shifting releases not enough energy to make ATP or NADH outright, but instead this energy is captured by a new energy carrier, Flavin adenine dinucleotide (FAD). FAD is reduced by the addition of two H's to become ~.

D. energy derived from the breakdown of NADH and ~
E. energy from the metabolism of amino acids ...

Flavin Adenine Dinucleotide (FAD FADH) another electron carrier similar to NAD+ (plays a role in the Krebs cycle)
(FAD + 2 e- + 2 H+ ~; flav = yellow)
Flexor a muscle which bends a joint
(flex = bend pliant) ...

A coenzyme that participates in oxidation reactions by accepting two electrons from a donor molecule and two H+ from the solution. The reduced form, ~, transfers electrons to carriers that function in oxidative phosphorylation. (Figure 16-8)
fatty acid ...

directly, by substrate-level phosphorylation, but this represents only a small fraction of the energy in each glucose that passes through these pathways. Much more of the energy in glucose is conserved in the form of high-energy electrons carried in pairs by the electron "shuttles" NADH and ~, ...

See also: See also: What is the meaning of ATP, Trans, Molecule, Glucose, Enzyme?

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