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Maltose is made up of:
A.Two \[\alpha - D - \] glucose
B.Normal $\beta - D - $glucose
C.$\alpha - D$and $\beta - D - $glucose
D.$Fructose$

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Last updated date: 24th Jun 2024
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Answer
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Hint: At first think about the properties of maltose. Maltose is also known as maltobiose or malt sugar. It is also soluble in water. Maltose is the basic molecule of starch. It is white crystalline sugar.

Complete step by step answer:
Maltose is formed from two molecules of glucose. When the two molecules bond together, the water molecule is removed. It is prepared from starch by diastase. Maltose is a disaccharide formed from two units of glucose joined with an $\alpha $bond. So maltose is made up of two \[\alpha - D - \]glucose and the answer is A.
Additional information:
The formula of maltose is ${C_{12}}{H_{22}}{O_{11}}$. It is created in seeds and other parts of plants as they break down their stored energy in order to sprout. Foods like cereals, certain fruits, and sweet potatoes contain naturally high amounts of this sugar. Maltose behaves like an early product of photosynthesis, rather than a storage product such as starch and its degradation products.
Maltose is an intermediate in the intestinal digestion of glycogen and starch. Maltose has no odor. Similar to glucose, maltose is a reducing sugar. Since the ring of one of the two glucose units will open to present a free group of aldehydes, the other is unable because of the glycosidic bond.
Note:
All monosaccharides are reducing sugars because they have an aldehyde group or can tautomerize in solution to form an aldehyde group. In disaccharides, lactose and maltose are reducing sugars.