Polysaccharides
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CHXII14:BIOMOLECULES

324824 What is the nature of glucose-glucose linkage in starch that makes it so susceptible to acid hydrolysis?

1 Starch is a hemiacetal
2 Starch is an acetal
3 Starch is a polymer
4 Starch contains only few molecules of glucose
CHXII14:BIOMOLECULES

324825 The glycosidic linkage involved in linking the glucose units in amylose part of starch is

1 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{4} \beta}\) - linkage
2 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{6} \alpha}\) - linkage
3 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{6} \beta}\) - linkage
4 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{4} \alpha}\) - linkage.
KCET - 2017
CHXII14:BIOMOLECULES

324826 Assertion :
Starch contains \(20 \%\) amylose and \(80 \%\) amylopectin.
Reason :
In starch, the glucose units are linked by \(\beta\)-linkages.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
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CHXII14:BIOMOLECULES

324824 What is the nature of glucose-glucose linkage in starch that makes it so susceptible to acid hydrolysis?

1 Starch is a hemiacetal
2 Starch is an acetal
3 Starch is a polymer
4 Starch contains only few molecules of glucose
CHXII14:BIOMOLECULES

324825 The glycosidic linkage involved in linking the glucose units in amylose part of starch is

1 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{4} \beta}\) - linkage
2 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{6} \alpha}\) - linkage
3 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{6} \beta}\) - linkage
4 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{4} \alpha}\) - linkage.
KCET - 2017
CHXII14:BIOMOLECULES

324826 Assertion :
Starch contains \(20 \%\) amylose and \(80 \%\) amylopectin.
Reason :
In starch, the glucose units are linked by \(\beta\)-linkages.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
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CHXII14:BIOMOLECULES

324824 What is the nature of glucose-glucose linkage in starch that makes it so susceptible to acid hydrolysis?

1 Starch is a hemiacetal
2 Starch is an acetal
3 Starch is a polymer
4 Starch contains only few molecules of glucose
CHXII14:BIOMOLECULES

324825 The glycosidic linkage involved in linking the glucose units in amylose part of starch is

1 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{4} \beta}\) - linkage
2 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{6} \alpha}\) - linkage
3 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{6} \beta}\) - linkage
4 \(\mathrm{\mathrm{C}_{1}-\mathrm{C}_{4} \alpha}\) - linkage.
KCET - 2017
CHXII14:BIOMOLECULES

324826 Assertion :
Starch contains \(20 \%\) amylose and \(80 \%\) amylopectin.
Reason :
In starch, the glucose units are linked by \(\beta\)-linkages.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
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