The building blocks of carbohydrates are monosaccharides. The elements in carbohydrates are carbon, hydrogen, and oxygen.
The building blocks of proteins are the twenty amino acids. The elements in proteins are carbon, hydrogen, oxygen, nitrogen, and sulfur.
2007-12-17 16:03:44
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answer #1
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answered by ecolink 7
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Carbohydrates are made up of elements C, H, O in a fixed ratio CH2O. They can be broken down into 3 subgroups:
1. Monosaccharides (simplest unit)
E.g. Glucose, Fructose, Galactose
2. Disaccharide (Two monosaccharides joined together in a condensation reaction where 1 molecule of water is removed)
E.g. Glucose + Fructose --> Sucrose
Glucose + Galactose --> Lactose
Glucose + Glucose --> Maltose
3. Polysaccharide (polymers of monosaccharides)
E.g. Starch, which is a polymer of alpha glucose, more specifically amylose (1,4 glycosidic linkage) + amylopectin (1,6)
E.g. Cellulose, a polymer of beta glucose
All sugars are reducing except for sucrose and polysaccharides.
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Proteins are made of elements C, N, O, H and may often contain other trace elements such as S, K and so on.
They consist of the following, around an asymmetric carbon atom
1. An amine group (NH2) at the end of the molecule
2. A carboxylic acid group (COOH) at the other end of the molecule
3. A hydrogen atom
4. A variable side chain
2007-12-18 00:37:15
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answer #2
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answered by acetylcholinergic 2
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Carbohydrates are compounds with C H O. The simplest ones are the sugars. Starch and glycogen, and cellulose are polymers of glucose. Proteins are polymers of amino acids.
2007-12-18 00:05:03
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answer #3
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answered by OKIM IM 7
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BTW monosaccarides are glucose
2007-12-18 00:05:32
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answer #4
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answered by shakeyourbotty 2
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