Match List I with List II:
List I List II
A. Chitin I. Polymer of fructose
B. Lecithin II. Protein
C. Collagen III. Polysaccharide
D. Inulin IV. Phospholipid 

Choose the correct answer from the options given below: 
1. A -III , B-II, C-I, D-IV
2. A -III, B-I, C-II, D-IV
3. A -IV, B-III, C-I, D-II
4. A -III , B-IV, C-II , D-I
Subtopic:  Proteins | Lipids | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 91%
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A. Cellulose and Starch can hold I2 due to formation of helical secondary structures 
B. Proteins transport nutrient across cell membrane and fight infectious organisms 
C. At high-temperature, enzymes get damaged while inorganic catalysts work efficiently 
D. In animal tissue, different drugs, pigments, essential oil, magnesium, O2 compounds are noticed 
E. DNA and RNA have three chemically distinct components - heterocyclic ring, pentose monosaccharide and phosphate 

Out of the statements given above about biomolecules, which of the statements are not correct?
1. D and E only 
2. A and D only 
3. A, B and D only 
4. B, E and C only 
Subtopic:  The DNA | Proteins | Carbohydrates |
 61%
From NCERT
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Which of the following combination of factors affects enzyme activity?
A. Salinity & pH
B. Temperature
C. Concentration of substrate
D. Temperature & pH
E. pH
Choose the correct answer from the options given below:
1. A only
2. B only
3. C & D only
4. A & B only

Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 85%
From NCERT
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Match List I with List II:
List I List II
A. Collagen I. Intercellular ground substances
B. GLUT- 4 II. Flights infectious agents
C. Antibody III. Sensory reception
D. Receptor IV. Enables glucose transport into the cell
Choose the correct answer from the options given below:
1. A-II      B-I      C-III     D-IV
2. A-IV     B-III    C-II      D-I
3. A-I       B-IV    C-II      D-III
4. A-III     B-II     C-IV     D-I
 
Subtopic:  Proteins |
 92%
From NCERT
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Which of the following compounds are secondary metabolites?
A. Morphine
B. Abrin
C. Lecithin
D. Uridine
E. Curcumin
Choose the correct answer from the option given below:
1. A & E only
2. A, B & E only
3. C & D only
4. A & C only
Subtopic:  Primary & Secondary Metabolites |
 87%
From NCERT
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Which of the following statement is/are incorrect regarding polysaccharides?
A. Inulin is a polymer of fructose
B.  Both starch and glycogen are present as storehouses of energy in plant tissue 
C. Glucose is a monomer of cellulose
D. Cellulose is a homopolymer while chitin is a heteropolymer 
E. Starch does not contain complex helices and hence cannot hold I2
Choose the correct answer from the options given below:
1. A, B, C only
2. B, D, E only
3. B, E only
4. B, C, D only
Subtopic:  Carbohydrates: Starch & Glycogen | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 55%
From NCERT
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Read the given statements A, B and C and select the correct option.
(A) All enzymes are proteinaceous in nature.
(B) Some competitive inhibitors are often used in the control of bacterial pathogens.
(C) Active site of an enzyme is formed by the folding of the backbone of tertiary structure of protein upon itself.
1. Statements (A) and (B) are correct
2. Statements (B) and (C) are correct
3. Statements (A) and (C) are correct
4. Statements (A), (B) and (C) are correct
Subtopic:  Proteins | Enzymes | Factors Affecting Enzyme Catalysis Reaction | Properties of Enzymes |
 57%
From NCERT
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Match column-I with column-II and select the correct option.
Column-I Column-II
a.  Catalyse the transfer of specific groups other than hydrogen from one substrate to other (i) Oxido-
reductases
b. Catalyse the breakdown of larger molecules into
smaller with addition of water
(ii) Lyases
c. Catalyse removal of groups from substrates by
mechanism other than hydrolysis leaving double bonds
(iii) Transferases
d. Catalyse linking together of 2 compounds (iv) Ligases
(v) Hydrolases
1. a(iii), b(i), c(ii), d(iv)
2. a(iii), b(ii), c(iv), d(i)
3. a(iii), b(ii), c(v), d(i)
4. a(iii), b(v), c(ii), d(iv)
   
Subtopic:  Enzymes Classification |
 81%
From NCERT
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Match column I with column II and select the correct option.
    Column I                                              Column II
a. Phosphate and hydroxyl group of       (i) Peptide bond
sugar in a nucleotide
b. Polymer of amino acids                      (ii) Glycosidic bond
c. Polysaccharides                                   (iii) Hydrogen bond
d. Adenine and thymine                          (iv) Ester bond
in a DNA
1. a(ii), b(iii), c(iv), d(i)
2. a(ii), b(iv), c(iii), d(i)
3. a(iv), b(i), c(ii), d(iii)
4. a(iv), b(i), c(iii), d(ii)
Subtopic:  The DNA | Amino Acids | Zwitter ion & Peptide Bond | Carbohydrates: Glycosidic Bond & Disaccharide |
 86%
From NCERT
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Read the statements given below carefully
(a) The inhibitor closely resembles the enzyme in its molecular structure.
(b) Inhibitor competes with the substrate for substrate binding site of the enzyme.
(c) It leads to decline in activity of the enzyme.
(d) Malonate inhibition by succinate dehydrogenase is an example of the same.
Out of the four statements given above regarding competitive inhibition, correct one is/are :
1. One
2. Two
3. Three
4. Four
Subtopic:  Enzyme Inhibition |
From NCERT
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