Use of lactose and galatose in human with regarding to their solubility

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Lactose, a disaccharide found in milk, comprises glucose and galactose and constitutes 2 to 8 percent of milk by weight. It is digested by the enzyme lactase in the intestine, which breaks it down into glucose and galactose for absorption. The low solubility of lactose may have implications for osmosis, potentially aiding in water retention or removal in the colon, although this specific function in the kidneys remains uncertain. Lactose's low solubility could also be advantageous in breast milk, possibly contributing to controlled nutrient absorption in infants. Galactose, on the other hand, serves as an energy source and can be converted into glucose in the body, although its specific uses beyond this conversion and its role in gum production were questioned in the discussion. Overall, both sugars play significant roles in human nutrition and physiology.
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I would like to know the use of lactose and galatose in human with regarding to their solubility.
how does low solubility of lactose can be made good use on human?
what are the uses of galactose for human other than making guma?
 
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Im not sure as to what the intent of your question is so maybe you can fill that part in. I remember refrences to lactose being used by some cells to control osmosis or rather to remove water by osmosis from other places, think it might have been the colon to dry out the fecal matter that was moving through it. Other wise they are both often used in breast milk by the body.
 
apple963 said:
I would like to know the use of lactose and galatose in human with regarding to their solubility.
how does low solubility of lactose can be made good use on human?

Lactose in found in milk. It is a di-saccharide (sugar ).Makes upto 2 to 8 percent of milk (by weight ).It is made up of glucose and galactose(monosaccarides).

The intestinal villi secrete an enzyme called lactase (β-D-galactosidase) to digest it. This enzyme cleaves the lactose molecule into its two subunits, the simple sugars glucose and galactose, which can be absorbed.

https://www.physicsforums.com/newreply.php?do=newreply&p=2900290"
 
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madcat8000 said:
Im not sure as to what the intent of your question is so maybe you can fill that part in. I remember refrences to lactose being used by some cells to control osmosis or rather to remove water by osmosis from other places, think it might have been the colon to dry out the fecal matter that was moving through it. Other wise they are both often used in breast milk by the body.


thanks for your reply.
you said lactose can be used to control osmosis, is that also happen in kidney?
what is the advantage of using lactose in breast milk with its low solubility property?
how about the galactose? what is the use of galactose in human?

hope to hear from you soon.
 
apple963 said:
thanks for your reply.
you said lactose can be used to control osmosis, is that also happen in kidney?
what is the advantage of using lactose in breast milk with its low solubility property?
how about the galactose? what is the use of galactose in human?

hope to hear from you soon.

Lactose is broken down in the intestine into its components glucose and galactose which are absorbed.

kidneys contain a number of substances and no. of complex mechanisms for its function .

In the wiki link the lactose is formed in the body and secreted in breast milk.
All infants have the ability to break down this sugar - by the lactase enzyme secreted in the infants intestine.

galactose is another form of sugar which is can be converted to glucose in the body.


http://en.wikipedia.org/wiki/Galactose"
 
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