Among the following, which one is a disaccharide?
- Glucose
- Glycogen
- Maltose
- Starch
The Correct Option is C
Solution and Explanation
Maltose is a disaccharide composed of two glucose molecules linked together by a glycosidic bond. It is commonly found in germinating seeds and is produced during the breakdown of starch by the enzyme amylase.
Glucose is a monosaccharide, which means it consists of a single sugar molecule.
Glycogen is a polysaccharide, which is a complex carbohydrate composed of multiple glucose units linked together.
Starch is also a polysaccharide composed of glucose units and serves as a storage form of energy in plants.
Therefore, the correct option is (C): Maltose.
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Concepts Used:
Biomolecules
Biomolecules are the most essential organic molecules, which are involved in the maintenance and metabolic processes of living organisms. These non-living molecules are the actual foot-soldiers of the battle of sustenance of life.
There are four major classes of Biomolecules – Carbohydrates, Proteins, Nucleic acids and Lipids.
- Carbohydrates are chemically defined as polyhydroxy aldehydes or ketones or compounds which produce them on hydrolysis.
- Proteins are another class of indispensable biomolecules, which make up around 50per cent of the cellular dry weight. Proteins are polymers of amino acids arranged in the form of polypeptide chains. The structure of proteins is classified as primary, secondary, tertiary and quaternary in some cases.
- Nucleic acids refer to the genetic material found in the cell that carries all the hereditary information from parents to progeny. There are two types of nucleic acids namely, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The main function of nucleic acid is the transfer of genetic information and synthesis of proteins by processes known as translation and transcription.
- Lipids are organic substances that are insoluble in water, soluble in organic solvents, are related to fatty acids and are utilized by the living cell.