BIOLOGY
CARBOHYDRATES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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large number of hydroxyl groups
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aldehyde groups
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large number of carbon atoms in carbohydrate chain
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large number of hydrogen atoms
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Detailed explanation-1: -Answer and Explanation: Various hydroxyl groups are found in the structures of carbohydrates. The nature of hydroxyl groups is polar and thus, they readily dissolve in polar solvent that is water. These groups are responsible for the solubility of carbohydrates in water.
Detailed explanation-2: -Carbohydrates are hydrophilic substances which are soluble in water and alcohol. The-OH groups of carbohydrates are primarily responsible for their solubility.
Detailed explanation-3: -Because carbohydrates have many hydroxyl groups associated with the molecule, they are therefore excellent H-bond donors and acceptors.
Detailed explanation-4: -The term carbohydrates (or sugars) refers to a group of polyhydroxy aldehydes or ketones. This means that a carbohydrate molecule contains several hydroxyl groups and either an aldehyde or a ketone group (see below).
Detailed explanation-5: -The hydroxyl group that is attached to the anomeric carbon atom (i.e., the carbon containing the aldehyde or keto group) of carbohydrates in solution has unusual reactivity, and derivatives, called glycosides, can be formed; glycosides formed from glucose are called glucosides.