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clairajogriggsk
24.02.2020 •
Biology
Which of the following statements about maltose are correct?
1. it is formed from two monosaccharide molecules of the same type
2. it is soluble in water
3. it is a reducing sugar
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Ответ:
All the three statements about maltose are correct.
Explanation:
1) Maltose is formed from the combination of two same type of monosaccharide i. e. two glucose molecules.
2) Maltose is soluble in water. Its solubility value is 1.080 g/mL.
3) Maltose is a reducing sugar because it act as a reducing agent due to the presence of aldehyde group with glucose molecules.
Ответ:
The three statements are correct.
Explanation: Maltose is a disaccharide consisting of two D-glucose (monosaccharide) units joined covalently by an O-glycosidic bond between carbon 1 (C-1) of one glucose unit and carbon 4 (C-4) of another glucose unit. O-glycosidic bond is formed when a hydroxyl group of one sugar reacts with the anorexic carbon of another sugar molecule.
Maltose dissolves in water, therefore it is soluble in water.
Maltose is a reducing disaccharide because the anomeric carbon atom (C-1) of the second glucose residue can be oxidized to a carboxyl group. Thus maltose is reducing sugar because it is capable of reducing ferric or cupric ion. Reducing sugars reduce cupric Cu2+ or ferric ions Fe3+ and have their carbonyl carbon oxidized to a carboxyl group.
Ответ:
Conclusion. Proteins are built as chains of amino acids, which then fold into unique three-dimensional shapes. Bonding within protein molecules helps stabilize their structure, and the final folded forms of proteins are well-adapted for their functions.
Explanation: