HARD
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Cyclic structure of fructose is known as fructofuranose.

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Important Questions on Biomolecules

EASY
Which of the following compounds will behave as reducing sugar in an aqueous KOH solution?
EASY
Synthesis of each molecule of glucose in photosynthesis involves
MEDIUM
Among the following, the incorrect statement is
EASY
Which of the following statements is not true about sucrose?
HARD

The formulas of A and B for the following reaction sequence are

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MEDIUM
The structure of D-+-glucose is


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The structure of L---glucose is
EASY
Complete hydrolysis of starch gives:
EASY
Two monomers in maltose are:
EASY

Match items of Row I with those of Row II.

Row I:

(P)
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(Q)
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(R)
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(S)
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Row II:

(i) αD() Fructofuranose.

(ii) βD() Fructofuranose.

(iii) αD() Glucopyranose.

(iv) βD() Glucopyranose.

Correct match is

MEDIUM
Which one given below is a non-reducing sugar?
EASY
Maltose on treatment with dilute HCl gives:
MEDIUM
Draw the structure of fructose. Mention the number of chiral carbon atoms and number of optical isomers present in it.
MEDIUM
Amylopectin is composed of:
EASY
A molecule of Stachyose contains how many carbon atoms?
EASY
Which of the given statements is incorrect about glycogen?
EASY

 The correct observation in the following reaction is:

SucroseGlycosidic bond Cleavage (Hydrolysis)A+BSeliwanoff Reagent?

MEDIUM
The Fischer presentation of D-glucose is given below

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The correct structure(s) of β-L- glucopyranose is(are)
HARD
Ketones are normally not reducing. Fructose however is reducing towards Fehling’s solution and Tollens reagent in spite of the fact that it has ketonic group. Give reason.
EASY
What is the carbohydrate containing >C=O (keto) group known as?