EASY
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Select the correct statement with respect to glycogen.

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Important Questions on Biomolecules

EASY
What is the advantage of storing glucose as glycogen in animals instead of as monomeric glucose?
EASY
Which of the following pairs are both polysaccharides?
MEDIUM
Choose the correct statements from the following:
A) In a polysaccharide chain, the right end is reducing end and the left end is non-reducing end.
B) In a protein, the right end is a first amino acid called N-end, and the left end is called C-terminal.
C) Concanavalin A is a drug used to cure cancer along with vinblastin and curcumin.
D) GLUT-4 enables glucose transport into cells.
HARD
Two tubes labelled 'P' and 'Q' contain foodstuff. Tube 'P' gave a positive test with Benedict's solution while tube 'Q' gave a positive test with nitric acid. Which of the following is correct?
MEDIUM
A polysaccharide 'X' on boiling with dil H2SO4 at 393 K under 2-3 atm pressure yields 'Y' 'Y' on treatment with bromine water gives gluconic acid. 'X' contains β-glycosidic linkages only. Compound 'X' is :
MEDIUM
Differentiate between the following :
Amylose and Amylopectin
EASY
Which of the following is a branched polymer, having branched chain polysaccharide units ?
HARD
Match the following lists.
  List-I   List-II   List-III
(A) Deoxyribose (i) Gums (I) Fatty acids
(B) Lipids (ii) C5H10O4 (II) True macromolecules
(C) Polymeric substances (iii) Trypsin (III) Cellulose
(D) Polypeptides (iv) Glycerol (IV) Carbohydrate

The correct match is:

EASY

Assertion (A): Starch can hold iodine molecules whereas cellulose cannot hold iodine molecules.

Reason R: Cellulose forms helical secondary structures whereas starch does not contain complex helices.

The correct answer is:

EASY
Which ONE of the following is a hetero-polysaccharide?
EASY
The type of polysaccharide present in a cotton fibre
EASY
A dehydration reaction links two glucose molecules to produce maltose. If the formula for glucose is C6H12O6 then what is the formula for maltose?
MEDIUM

Give the plausible explanation for the following:

Starch and cellulose both contain glucose unit as monomer, yet they are structurally different.

MEDIUM
What is glycogen? How is it different from starch?
EASY
Which of the given statements is incorrect about glycogen?