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Because enzymes can only catalyse reactions of molecules with specific shapes. Glucose, galactose and fructose all have different shapes, so they need to undergo different reactions in order to be metabolised.

All sugars are converted to fructose phosphate before metabolism begins. This happens to fructose by phosphorylating it directly, to glucose by phosphorylating glucose, then converting the glucose phosphate to fructose phosphate, and to galactose by converting the galactose to glucose.

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How do galactose, fructose, and glucose differ in terms of their chemical structures and metabolic pathways?

Galactose, fructose, and glucose are all monosaccharides, or simple sugars, but they differ in their chemical structures and metabolic pathways. Galactose and glucose have similar structures, while fructose has a different structure. In terms of metabolism, galactose and glucose are primarily metabolized in the liver through the same pathway, while fructose is metabolized differently in the liver and can have different effects on the body, such as contributing to fat accumulation.


What is the Chemical formula for polysaccharide that contains 3 glucose 3 fructose and 4 galactose?

C6h12o6 + c6h12o6 + c6h12o6 → c18h32o16


What is an example of a monosaccharids?

Glucose, Fructose, and Galactose are all examples of monosaccharides.


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There are three monosaccharides: glucose, fructose and galactose.


Monomer of Carbohydrates?

The monomer of carbohydrates is monosaccharides, such as glucose, fructose, and galactose. These monosaccharides can join together through glycosidic bonds to form larger carbohydrate molecules like disaccharides and polysaccharides.


What type of sugar is a monosaccharide?

its a simple sugar such as glucose, galactose and fructose. hope this helped :)


What three simple sugars are absorbed into the bloodstream?

The three simple sugars absorbed into the bloodstream are glucose, fructose, and galactose.


What are three forms of monosaccharides?

glucose, fructose, sucroseI believe glucose, galactose, and fructose are the three most common.


What are three monosaccharides?

glucose, fructose, and galactose


In the liver galactose and fructose are converted to what?

glycogen


What are monosaccharides examples?

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What are the three carbohydrate?

Glucose, Fructose and Galactose.