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CHXII14:BIOMOLECULES

324807 Which of the following carbohydrate cannot be digested by human body?

1 Cellulose

2 Glycogen

3 Starch

4 All of these

CHXII14:BIOMOLECULES

324808 Raffinose on hydrolysis does not give

1 Glucose

2 Ribose

3 Fructose

4 Galactose

CHXII14:BIOMOLECULES

324809 Pick up the correct statements from the following.
(I) Glucose exists in two different crystalline forms, $α - D -$ glucose and $β - D -$ glucose.
(II) $α - D -$ glucose and $β - D -$ glucose are enantiomers.
(III) Cellulose is a straight chain polysaccharide made up of only $β$ - glucose units.
(IV)Cyclic structure of $α - D -$ glucose or $β - D$ - glucose is called pyranose structure.

1 (I) and (II)

2 (I), (III), (IV)

3 Only (I)

4 Only (IV)

Explanation:

$α - D$ glucose and $β - D$ glucose are two cyclic hemiacetal forms of glucose which differ only in configuration of hydroxyl group at anomeric carbon. Thus, $α - D -$ glucose and $β - D -$ glucose are anomers but not enantiomers.These are six membered ring structures also known as pyranose rings.
Cellulose consists of $1, 4 - β$ -glycosidic linkages of glucose. So, (1), (3), and (4) are correct statements.

CHXII14:BIOMOLECULES

324810 Consider an amylase chain of 4000 glucose units. How many cleavage are required to lower the average length to 400 units?

1 9

2 7

3 5

4 3

Explanation:

Number of cleavage required
$= \frac{4000}{400} - 1 = 10 - 1 = 9$

CHXII14:BIOMOLECULES

324811 Assertion :
Cellulose cannot be directly utilized by the human body as a source of energy.
Reason :
Cellulose forms the chief structural material of cell walls of plants.

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.

CHXII14:BIOMOLECULES

324807 Which of the following carbohydrate cannot be digested by human body?

1 Cellulose

2 Glycogen

3 Starch

4 All of these

CHXII14:BIOMOLECULES

324808 Raffinose on hydrolysis does not give

1 Glucose

2 Ribose

3 Fructose

4 Galactose

CHXII14:BIOMOLECULES

324809 Pick up the correct statements from the following.
(I) Glucose exists in two different crystalline forms, $α - D -$ glucose and $β - D -$ glucose.
(II) $α - D -$ glucose and $β - D -$ glucose are enantiomers.
(III) Cellulose is a straight chain polysaccharide made up of only $β$ - glucose units.
(IV)Cyclic structure of $α - D -$ glucose or $β - D$ - glucose is called pyranose structure.

1 (I) and (II)

2 (I), (III), (IV)

3 Only (I)

4 Only (IV)

Explanation:

$α - D$ glucose and $β - D$ glucose are two cyclic hemiacetal forms of glucose which differ only in configuration of hydroxyl group at anomeric carbon. Thus, $α - D -$ glucose and $β - D -$ glucose are anomers but not enantiomers.These are six membered ring structures also known as pyranose rings.
Cellulose consists of $1, 4 - β$ -glycosidic linkages of glucose. So, (1), (3), and (4) are correct statements.

CHXII14:BIOMOLECULES

324810 Consider an amylase chain of 4000 glucose units. How many cleavage are required to lower the average length to 400 units?

1 9

2 7

3 5

4 3

Explanation:

Number of cleavage required
$= \frac{4000}{400} - 1 = 10 - 1 = 9$

CHXII14:BIOMOLECULES

324811 Assertion :
Cellulose cannot be directly utilized by the human body as a source of energy.
Reason :
Cellulose forms the chief structural material of cell walls of plants.

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.

CHXII14:BIOMOLECULES

324807 Which of the following carbohydrate cannot be digested by human body?

1 Cellulose

2 Glycogen

3 Starch

4 All of these

CHXII14:BIOMOLECULES

324808 Raffinose on hydrolysis does not give

1 Glucose

2 Ribose

3 Fructose

4 Galactose

CHXII14:BIOMOLECULES

324809 Pick up the correct statements from the following.
(I) Glucose exists in two different crystalline forms, $α - D -$ glucose and $β - D -$ glucose.
(II) $α - D -$ glucose and $β - D -$ glucose are enantiomers.
(III) Cellulose is a straight chain polysaccharide made up of only $β$ - glucose units.
(IV)Cyclic structure of $α - D -$ glucose or $β - D$ - glucose is called pyranose structure.

1 (I) and (II)

2 (I), (III), (IV)

3 Only (I)

4 Only (IV)

Explanation:

$α - D$ glucose and $β - D$ glucose are two cyclic hemiacetal forms of glucose which differ only in configuration of hydroxyl group at anomeric carbon. Thus, $α - D -$ glucose and $β - D -$ glucose are anomers but not enantiomers.These are six membered ring structures also known as pyranose rings.
Cellulose consists of $1, 4 - β$ -glycosidic linkages of glucose. So, (1), (3), and (4) are correct statements.

CHXII14:BIOMOLECULES

324810 Consider an amylase chain of 4000 glucose units. How many cleavage are required to lower the average length to 400 units?

1 9

2 7

3 5

4 3

Explanation:

Number of cleavage required
$= \frac{4000}{400} - 1 = 10 - 1 = 9$

CHXII14:BIOMOLECULES

324811 Assertion :
Cellulose cannot be directly utilized by the human body as a source of energy.
Reason :
Cellulose forms the chief structural material of cell walls of plants.

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.

CHXII14:BIOMOLECULES

324807 Which of the following carbohydrate cannot be digested by human body?

1 Cellulose

2 Glycogen

3 Starch

4 All of these

CHXII14:BIOMOLECULES

324808 Raffinose on hydrolysis does not give

1 Glucose

2 Ribose

3 Fructose

4 Galactose

CHXII14:BIOMOLECULES

324809 Pick up the correct statements from the following.
(I) Glucose exists in two different crystalline forms, $α - D -$ glucose and $β - D -$ glucose.
(II) $α - D -$ glucose and $β - D -$ glucose are enantiomers.
(III) Cellulose is a straight chain polysaccharide made up of only $β$ - glucose units.
(IV)Cyclic structure of $α - D -$ glucose or $β - D$ - glucose is called pyranose structure.

1 (I) and (II)

2 (I), (III), (IV)

3 Only (I)

4 Only (IV)

Explanation:

$α - D$ glucose and $β - D$ glucose are two cyclic hemiacetal forms of glucose which differ only in configuration of hydroxyl group at anomeric carbon. Thus, $α - D -$ glucose and $β - D -$ glucose are anomers but not enantiomers.These are six membered ring structures also known as pyranose rings.
Cellulose consists of $1, 4 - β$ -glycosidic linkages of glucose. So, (1), (3), and (4) are correct statements.

CHXII14:BIOMOLECULES

324810 Consider an amylase chain of 4000 glucose units. How many cleavage are required to lower the average length to 400 units?

1 9

2 7

3 5

4 3

Explanation:

Number of cleavage required
$= \frac{4000}{400} - 1 = 10 - 1 = 9$

CHXII14:BIOMOLECULES

324811 Assertion :
Cellulose cannot be directly utilized by the human body as a source of energy.
Reason :
Cellulose forms the chief structural material of cell walls of plants.

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.

CHXII14:BIOMOLECULES

324807 Which of the following carbohydrate cannot be digested by human body?

1 Cellulose

2 Glycogen

3 Starch

4 All of these

CHXII14:BIOMOLECULES

324808 Raffinose on hydrolysis does not give

1 Glucose

2 Ribose

3 Fructose

4 Galactose

CHXII14:BIOMOLECULES

324809 Pick up the correct statements from the following.
(I) Glucose exists in two different crystalline forms, $α - D -$ glucose and $β - D -$ glucose.
(II) $α - D -$ glucose and $β - D -$ glucose are enantiomers.
(III) Cellulose is a straight chain polysaccharide made up of only $β$ - glucose units.
(IV)Cyclic structure of $α - D -$ glucose or $β - D$ - glucose is called pyranose structure.

1 (I) and (II)

2 (I), (III), (IV)

3 Only (I)

4 Only (IV)

Explanation:

$α - D$ glucose and $β - D$ glucose are two cyclic hemiacetal forms of glucose which differ only in configuration of hydroxyl group at anomeric carbon. Thus, $α - D -$ glucose and $β - D -$ glucose are anomers but not enantiomers.These are six membered ring structures also known as pyranose rings.
Cellulose consists of $1, 4 - β$ -glycosidic linkages of glucose. So, (1), (3), and (4) are correct statements.

CHXII14:BIOMOLECULES

324810 Consider an amylase chain of 4000 glucose units. How many cleavage are required to lower the average length to 400 units?

1 9

2 7

3 5

4 3

Explanation:

Number of cleavage required
$= \frac{4000}{400} - 1 = 10 - 1 = 9$

CHXII14:BIOMOLECULES

324811 Assertion :
Cellulose cannot be directly utilized by the human body as a source of energy.
Reason :
Cellulose forms the chief structural material of cell walls of plants.

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.