EASY
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Which of the following form the basic units of carbohydrates?

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Important Questions on Biomolecules

EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
A dehydration reaction links two glucose molecules to produce maltose. If the formula for glucose is C6H12O6 then what is the formula for maltose?
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
Select the incorrect statement of Biomolecules?
MEDIUM
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
Differentiate between the following :
Amylose and Amylopectin
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
The two functional groups characteristic of sugars are
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
In vertebrates 'glycogen' is stored chiefly in:
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
Cellulose does not form blue colour with Iodine because
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
Which ONE of the following is a hetero-polysaccharide?
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides

The following carbohydrate is

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HARD
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
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
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
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.
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides

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
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
The rigidity of cellulose is due to:
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
Which one of the following is a non-reducing carbohydrate?
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
The type of polysaccharide present in a cotton fibre
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
Identify the substances having glycosidic bond and peptide bond, respectively in their structure.
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
An amount of 18 g glucose corresponds to:
MEDIUM
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides

Match the following

(a) Inhibitor of catalytic activity (i) Ricin
(b) Possess peptide bonds (ii) Malonate
(c) Cell wall material in fungi (iii) Chitin
(d) Secondary metabolite (iv) Collagen

Choose the correct option from the following

HARD
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
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
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
What is the advantage of storing glucose as glycogen in animals instead of as monomeric glucose?
EASY
Biology>Cell : Structure and Functions>Biomolecules>Polysaccharides
Which of the following pairs are both polysaccharides?