Metabolism of fructose, Biology

Fructose is an abundant sugar in the human diet; sucrose (table sugar) is a disaccharide that when hydrolyzed yields glucose and fructose and fructose is also a major sugar in honey and fruits. There are two pathways for the metabolism of fructose; one happens in muscle and adipose tissue and the other in liver.

1.  In adipose and muscle tissue, fructose can be phosphorylated by hexokinase (that is capable of phosphorylating both glucose and fructose) to form fructose 6-phosphate that then enters glycolysis.

2.  In liver, the cells hold mainly glucokinase instead of hexokinase and this enzyme phosphorylates only glucose.  Thus in liver, fructose is metabolized instead through the fructose 1-phosphate pathway.

-   Fructose is transformed to fructose 1-phosphate by fructokinase.

-   Fructose 1-phosphate is then change into glyceraldehyde and dihydroxyacetone   phosphate   through   fructose   1-phosphate    aldolase.   The   dihydroxyacetone will feeds into glycolysis   at the triose   phosphate   isomerase   step.


Posted Date: 4/12/2013 12:50:44 AM | Location : United States

Related Discussions:- Metabolism of fructose, Assignment Help, Ask Question on Metabolism of fructose, Get Answer, Expert's Help, Metabolism of fructose Discussions

Write discussion on Metabolism of fructose
Your posts are moderated
Related Questions
Which of the following processes in capillaries in the lung assist in the removal of carbon dioxide from the body? A. Net flux of carbon dioxide from red blood cells into plasm

Explain the importance of understanding the relationship between structure and function?

How Hormonal Status affects the bmr? Thyroid status may be most important factor and can make differences of up to plus or minus 50% for hyperthyroidism or hypothyroidism, resp

Two parents who are each known to be carriers of an autosomal recessive alleles have four children. None of the children has the recessive condition. What is the probability that o

Chromosomes, coloured bodies, are composed of proteins and DNA; so are chromatids. At metaphase I there are 46 chromosomesaligned in pairs along the human cells equatorial plate. A

C ampylobacter infection C a mpylobacter jejuni is the commonest species found in poultry. These are delicate organisms that may not survive outside the host unless prot

How Folate is Important For Pregnant Women? Folate is also important for pregnant women. Low blood levels of folate during pregnancy can cause neural tube defects-anencephaly (

Classification of Freshwater Ecosystems Fresh water ecosystems depend on the terrestrial ecosystems for large quantities of organic and inorganic matter which are constantly a

whats ur clear definition of virus