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FADH2

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FADH2
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Reduced form of flavin adenine dinucleotide.
fallopian tubes /fə-LOPE-ee-ən/ Ducts by which ova pass from the ovaries to the uterus.

FADH2: High energy electron carrier used to transport electrons generated in Glycolysis and Krebs Cycle to the Electron Transport Chain.
Glycolysis ...

adds its electrons to the electron transport system at a lower level than NADH, so it produces approximately two ATP.

Glycolysis ...

(D) FADH2
What type of metabolic reaction involves a gain of electrons by the molecule involved?
(A) Oxidation ...

Each 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.

(iii) FADH2 = 2 ATP
(b) Note that it takes one ATP to move each of the glycolysis-generated NADH into the matrix of the mitochondria ...

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
FMN
Flavin mononucleotide is a prosthetic group found in NADH dehydrogenase.

the stepwise transfer of electrons from NADH (and FADH2) 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 FADH2, 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 ...

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 .

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 FADH2.

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+ FADH2; 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) ...

cycle in cellular aerobic metabolism where acetyl CoA is combined with oxaloacetate to form citric acid; the resulting citric acid is converted into a number of other chemicals, eventually reforming oxaloacetate; NADH, some ATP, and FADH2 are ...

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 , which are generated in glycolysis and the Krebs cycle.

See also: See also: ATP, Trans, Molecule, Glucose, Enzyme

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