NADH and FADH2 - Biochemistry
Card 0 of 4
The coenzymes that are used in the production of ATP via the electron transport train are created during __________.
The coenzymes that are used in the production of ATP via the electron transport train are created during __________.
The coenzymes being referred to are 
and 
. 
and 
are used to generate the bulk of ATP at the electron transport chain. These factors are produced in both glycolysis and the Krebs cycle. In glycolysis the conversion of glyceraldehyde to 1,3-bisphosphoglycerate generates two molecules of 
per molecule of glucose. The conversion of pyruvate to acetyl-CoA is the next reaction that generates 
. In the Krebs cycle both 
and 
are produced. The reactions that produce 
are: isocitrate to alpha-ketoglutarate, alpha-ketoglutarate to succinyl-CoA, and malate to oxaloacetate.
The lone reaction that produces 
is the conversion of succinate to fumarate, which is carried out by an enzyme known as succinate dehydrogenase present in the electron transport chain.
The coenzymes being referred to are
The lone reaction that produces
Compare your answer with the correct one above
How many molecules of ATP are produced via glycolysis when starting with one molecule of glucose?
How many molecules of ATP are produced via glycolysis when starting with one molecule of glucose?
Four total molecules of ATP are produced during glycolysis. Note that all of these ATP molecules are created via substrate-level phosphorylation and were made anaerobically. Recall that there are two steps in glycolysis that require ATP as a reactant, and thus, the net ATP production is two ATP per molecule of glucose.
Four total molecules of ATP are produced during glycolysis. Note that all of these ATP molecules are created via substrate-level phosphorylation and were made anaerobically. Recall that there are two steps in glycolysis that require ATP as a reactant, and thus, the net ATP production is two ATP per molecule of glucose.
Compare your answer with the correct one above
A single NADH has the potential to eventually supply two different ATP amounts. Which of the following ATP values are accurate, and correctly match the value to the site of the body in which those values occur?
A single NADH has the potential to eventually supply two different ATP amounts. Which of the following ATP values are accurate, and correctly match the value to the site of the body in which those values occur?
The ATP yield from NADH is dependent on how the electrons from the cytoplasmic (glycolytic) NADH are transported into the mitochondria. In muscle, the glycerol-phosphate shuttle occurs, which results in 1.5 ATP per NADH. However, in the heart and liver, the malate-aspartate shuttle occurs, resulting in 2.5 ATP per NADH. This difference explains why some sources list the net ATP from glucose catabolism as 30 ATP, while others list 32 ATP.
The ATP yield from NADH is dependent on how the electrons from the cytoplasmic (glycolytic) NADH are transported into the mitochondria. In muscle, the glycerol-phosphate shuttle occurs, which results in 1.5 ATP per NADH. However, in the heart and liver, the malate-aspartate shuttle occurs, resulting in 2.5 ATP per NADH. This difference explains why some sources list the net ATP from glucose catabolism as 30 ATP, while others list 32 ATP.
Compare your answer with the correct one above
The electron carrier 
is produced by reactions catalyzed by which enzymes of the inner mitochondrial membrane?
I. Succinyl-CoA synthetase
II. Succinate dehydrogenase
III. Mitochondrial glycerol-3-phosphate dehydrogenase 2
IV. Aconitase.
The electron carrier
I. Succinyl-CoA synthetase
II. Succinate dehydrogenase
III. Mitochondrial glycerol-3-phosphate dehydrogenase 2
IV. Aconitase.
In the citric acid cycle, succinate dehydrogenase converts succinate to fumarate with the production also of a molecule of 
(flavin adenine dinucleotide) that supplies electrons to the electron transport chain. Mitochondrial glycerol-3-phosphate dehydrogenase-2 is an enzyme of the glycerol-3-phosphate shuttle that produces 
and converts glycerol-3-phosphate into dihydroxyacetone phosphate. The other enzymes are part of the citric acid cycle, but do not produce 
(aconitase converts citrate to isocitrate, while succinyl-CoA synthetase converts succinyl-CoA to succinate).
In the citric acid cycle, succinate dehydrogenase converts succinate to fumarate with the production also of a molecule of
Compare your answer with the correct one above