discuss three pathways for break down of glucose
Answers
Answered by
3
Glycolysis. Glycolysis is the process ofbreaking down a glucose molecule into two pyruvate molecules, while storing energy released during this process as ATP and NADH. Nearly all organisms that break down glucose utilize glycolysis.
Carbohydrate metabolism denotes the various biochemical processes responsible for the formation, breakdown, and interconversion of carbohydrates in livingorganisms.
Carbohydrates are central to many essentialmetabolic pathways.[1] Plants synthesize carbohydrates from carbon dioxide and waterthrough photosynthesis, allowing them to store energy absorbed from sunlight internally.[2] When animals and fungi consume plants, they use cellular respiration to break down these stored carbohydrates to make energy available to cells.[2] Both animals and plants temporarily store the released energy in the form of high energy molecules, such asATP, for use in various cellular processes.[3]
Although humans consume a variety of carbohydrates, digestion breaks down complex carbohydrates into a few simplemonomers (monosaccharides) for metabolism: glucose, fructose, andgalactose.[4] Glucose constitutes about 80% of the products, and is the primary structure that is distributed to cells in the tissues, where it is broken down or stored as glycogen.[3][4] In aerobic respiration, the main form of cellular respiration used by humans, glucose andoxygen are metabolized to release energy, with carbon dioxide and water as byproducts.[2] Most of the fructose and galactose travel to the liver, where they can be converted to glucose.[4]
Some simple carbohydrates have their ownenzymatic oxidation pathways, as do only a few of the more complex carbohydrates. Thedisaccharide lactose, for instance, requires the enzyme lactase to be broken into its monosaccharide components, glucose and galactose.[5]
Carbohydrate metabolism denotes the various biochemical processes responsible for the formation, breakdown, and interconversion of carbohydrates in livingorganisms.
Carbohydrates are central to many essentialmetabolic pathways.[1] Plants synthesize carbohydrates from carbon dioxide and waterthrough photosynthesis, allowing them to store energy absorbed from sunlight internally.[2] When animals and fungi consume plants, they use cellular respiration to break down these stored carbohydrates to make energy available to cells.[2] Both animals and plants temporarily store the released energy in the form of high energy molecules, such asATP, for use in various cellular processes.[3]
Although humans consume a variety of carbohydrates, digestion breaks down complex carbohydrates into a few simplemonomers (monosaccharides) for metabolism: glucose, fructose, andgalactose.[4] Glucose constitutes about 80% of the products, and is the primary structure that is distributed to cells in the tissues, where it is broken down or stored as glycogen.[3][4] In aerobic respiration, the main form of cellular respiration used by humans, glucose andoxygen are metabolized to release energy, with carbon dioxide and water as byproducts.[2] Most of the fructose and galactose travel to the liver, where they can be converted to glucose.[4]
Some simple carbohydrates have their ownenzymatic oxidation pathways, as do only a few of the more complex carbohydrates. Thedisaccharide lactose, for instance, requires the enzyme lactase to be broken into its monosaccharide components, glucose and galactose.[5]
Similar questions