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Fructose is metabolized almost completely in the liver in humans, and is directed toward replenishment of liver glycogen and triglyceride synthesis, while much of dietary glucose passes through the liver and goes to skeletal muscle, where it is metabolized to CO 2, H 2 O and ATP, and to fat cells where it is metabolized primarily to glycerol ...
GLUT5 is a fructose transporter expressed on the apical border of enterocytes in the small intestine. [5] GLUT5 allows for fructose to be transported from the intestinal lumen into the enterocyte by facilitated diffusion due to fructose's high concentration in the intestinal lumen.
Hepatic fructokinase (or ketohexokinase) is an enzyme that catalyzes the phosphorylation of fructose to produce fructose-1-phosphate. ATP + {\displaystyle \longrightarrow } ADP + ATP + D-fructose → ADP + D-fructose-1-phosphate [ 1 ]
Organs that use it most frequently include the liver and seminal vesicle; it is found in various organisms from bacteria to humans. A secondary use is the metabolism of dietary sorbitol , though sorbitol is known not to be absorbed as well in the intestine as its related compounds glucose and fructose, and is usually found in quite small ...
Mucus is released in the stomach and intestine, and serves to lubricate and protect the inner mucosa of the tract. It is composed of a specific family of glycoproteins termed mucins and is generally very viscous. Mucus is made by two types of specialized cells termed mucous cells in the stomach and goblet cells in the intestines. Signals for ...
6-phosphofructokinase, liver type (PFKL) is an enzyme that in humans is encoded by the PFKL gene on chromosome 21. [5] This gene encodes the liver (L) isoform of phosphofructokinase-1 , an enzyme that catalyzes the conversion of D - fructose 6-phosphate to D - fructose 1,6-bisphosphate , which is a key step in glucose metabolism ( glycolysis ).
The liver synthesises the bulk of lipoproteins. The liver is located in the upper right quadrant of the abdomen and below the diaphragm to which it is attached at one part, the bare area of the liver. This is to the right of the stomach and it overlies the gall bladder. The liver synthesises bile acids and lecithin to promote the digestion of ...
Bile of course helps absorption of the fat by emulsifying it, increasing its absorptive surface. Bile is made by the liver, but is stored in the gallbladder. Gastric inhibitory peptide (GIP) is produced by the mucosal duodenal cells in response to chyme containing high amounts of carbohydrate, proteins, and fatty acids. Main function of GIP is ...