A , B and C are three biomolecules. The results of the tests performed on them are given below: Molisch's test Barfoed Test Biuret Test A Positive Negative Negative B Positive Positive Negative C Negative Negative Positive A , B and C are respectively:

A = Lactose, B = Glucose, C = Albumin

A = Glucose, B = Fructose C = Albumin

A = Lactose, B = Glucose, C = Alanine

A = Lactose, B = Fructose, C = Alanine

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The compounds $D$ -glucose, $D$ -mannose and ' $X$ ' forms same osazone on reaction with phenyl hydrazine. $X$ exists predominantly in furanose form $Y$ . In the molecule $Y$ the anomeric carbon is at ........ position.

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Important Questions on Biomolecules

EASY

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Maltose on treatment with dilute

H C l

gives:

EASY

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

A molecule of Stachyose contains how many carbon atoms?

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Which of the following statements is not true about sucrose?

EASY

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Two monomers in maltose are:

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Synthesis of each molecule of glucose in photosynthesis involves

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Which of the given statements is incorrect about glycogen?

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Fructose and glucose can be distinguished by:

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Choose the correct statement of the following

MEDIUM

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

The correct corresponding order of names of four aldoses with configuration given below respectively, is

Question Image

MEDIUM

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Among the following, the incorrect statement is

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

A, B

and

C

are three biomolecules. The results of the tests performed on them are given below:

	Molisch's test	Barfoed Test	Biuret Test
$A$	Positive	Negative	Negative
$B$	Positive	Positive	Negative
$C$	Negative	Negative	Positive

A, B

and

C

are respectively:

MEDIUM

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Which one given below is a non-reducing sugar?

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Milk sugar is

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Amylopectin is composed of:

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Among the following which one is a non-reducing sugar?

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

What are the functional groups present in the structure of maltose?

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

The correct observation in the following reaction is:

$Sucrose \to_{}^{Glycosidic bond Cleavage (Hydrolysis)} A + B \to_{}^{Seliwanoff Reagent} ?$

EASY

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Which of the following compounds will behave as reducing sugar in an aqueous

KOH

solution?

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

The Fischer presentation of D-glucose is given below

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The correct structure(s) of

β - L -

glucopyranose is(are)

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Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

For 'invert sugar', the correct statement(s) is (are)

(Given: specific rotations of

(+) -

sucrose,

(+) -

maltose,

L - (-) -

glucose and

L - (+) -

fructose in aqueous solution are

+ 66^{°}, + 140^{°}, - 52^{°}

and

+ 92^{°}

, respectively)

The compounds D-glucose, D-mannose and 'X' forms same osazone on reaction with phenyl hydrazine. X exists predominantly in furanose form Y. In the molecule Y the anomeric carbon is at ........ position.

Important Questions on Biomolecules

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The compounds $D$ -glucose, $D$ -mannose and ' $X$ ' forms same osazone on reaction with phenyl hydrazine. $X$ exists predominantly in furanose form $Y$ . In the molecule $Y$ the anomeric carbon is at ........ position.