Which of the following is correct statement?
Show Hint
- Starch is a polymer of $\beta$-D-glucose
- Amylose is a component of starch
- Proteins are biopolymers of only one type of amino acids
- Lactose is a disaccharide of $\alpha$-D-glucose and $\beta$-D-galactose
The Correct Option is B
Solution and Explanation
Starch Composition Analysis
Starch is made up of two components: amylose and amylopectin. Amylose is a polysaccharide formed by long chains of α-D-glucose units, whereas amylopectin consists of α-D-glucose units linked through α-1,4 and α-1,6 glycosidic bonds. Therefore, amylose is indeed a component of starch.
The other options are incorrect because:
- Starch is a polymer of α-D-glucose, not β-D-glucose.
- Proteins are biopolymers made up of amino acids, but they are composed of more than one type of amino acid.
- Lactose is a disaccharide made up of β-D-glucose and β-D-galactose, not α-D-glucose.
Conclusion:
Amylose is a component of starch is the correct statement.
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