EASY
Earn 100

How many of the following compounds are mono-saccharides ?
Glycerol, Lecithin, Cholesterol, Starch, Ribose, Triglyceride, Glucose, Mannose.

50% studentsanswered this correctly

Important Questions on Biomolecules

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
Differentiate between the following :
Amylose and Amylopectin
EASY
The two functional groups characteristic of sugars are
EASY
Cellulose does not form blue colour with Iodine because
EASY
Which ONE of the following is a hetero-polysaccharide?
MEDIUM

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
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
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
Which one of the following is a non-reducing carbohydrate?
EASY
Identify the substances having glycosidic bond and peptide bond, respectively in their structure.
EASY
The type of polysaccharide present in a cotton fibre
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:

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
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?
EASY
Given below is a diagrammatic representation of a portion of glycogen

Question Image

Identify the linkage / type of bonding present at the labelled portion A. Which of the following carbohydrate have same type of bonding?