Match each item in Column I with only one item in Column II and select the correct match from the codes given:
COLUMN I
[Component]
COLUMN II
[% of the total cellular mass]
A. Protein P. 2
B. Carbohydrates Q. 1
C. Lipids R. 5-7
D. Nucleic acids  S. 3
T. 10-15
U. 70-90

Codes:
A B C D
1. U P R Q
2. T S P R
3. T P S R
4. P Q R S

Subtopic:  Introduction |
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Identify an acidic amino acid amongst the following:    
1. 2.
3. 4.
Subtopic:  Amino Acids |
 79%

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Identify the given biomolecule:
1. Thymine 2. Thymosine
3. Thymidylic acid 4. Cytidylic acid
Subtopic:  Nucleic Acid: Nucleotides |

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Consider the given statements regarding some important secondary metabolites:
I. Morphine is a strong opiate that is found naturally in opium and is mainly used as a pain medication.
II. Ricin is a toxin and a highly potent toxin produced in the seeds of the castor oil plant.
III. Concanavalin A is a lectin and is widely used in biology and biochemistry to characterize glycoproteins and other sugar-containing entities on the surface of various cells.
IV. Vinblastin is an anti-cancer drug typically used with other medications, to treat a number of types of cancer.
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
Subtopic:  Primary & Secondary Metabolites |
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The given figure represents structure of glycogen/amylopectin. Identify A, B, C and D:
A B C D
1. Reducing end Non reducing end α [1→4] linkage α [1→6] linkage
2. Non reducing end Reducing end α [1→4] linkage α [1→6] linkage
3. Reducing end Non reducing end α [1→6] linkage α [1→4] linkage
4. Non reducing end Reducing end α [1→6] linkage α [1→4] linkage
Subtopic:  Carbohydrates | Carbohydrates: Glycosidic Bond & Disaccharide | Carbohydrates: Starch & Glycogen |

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What level of protein structure is shown in the given diagram?

1. Primary 2. Secondary
3. Tertiary 4. Quaternary
Subtopic:  Proteins |
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Which of the following categories of enzyme classification are correctly matched?

EC 1 Oxidoreductases: catalyze oxidation/reduction reactions
EC 2 Hydrolases: catalyze the hydrolysis of various bonds
EC 3 Transferases: transfer a functional group (e.g. a methyl or phosphate group)
EC 4 Lyases: cleave various bonds by means other than hydrolysis and oxidation
EC 5 Isomerases: catalyze isomerization changes within a single molecule
EC 6 Ligases: join two molecules with covalent bonds.

1. EC 1, EC 4, EC 5 and EC 6 only
2. EC 2 and EC 3 only
3. EC 1, EC 4 and EC 6 only
4. EC 3, EC 4, EC 5 and EC 6 only
Subtopic:  Enzymes Classification |
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Enzymes A, B and C in the given figure can be:
     
A B C
1. Gastric lipase Salivary amylase Lingual lipase
2. Pepsin Salivary amylase Trypsin
3. Pepsin Trypsin Lactase
4. Rennin Maltase Sucrase
Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 72%

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In the given diagram of DNA double helix, what would be the correct values of 1, 2, and 3 in nanometre?
1 2 3
1. 1.0 3.4 34
2. 2.0 0.34  3.4
3. 2.0 3.4 0.34
4. 4.0 3.4 0.34
Subtopic:  The DNA |
 75%

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Consider the given two statements:
I: The living state and metabolism are synonymous.
II: Metabolism provides a mechanism for the production of energy.
1. Both I and II are correct and II correctly explains I
2. Both I and II are correct but II does not correctly explain I     
3. I is correct and II is incorrect
4. I is incorrect and II is correct
Subtopic:  THE LIVING STATE (OLD NCERT) |
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