Consider the given two statements:
Statement 1: The right end of the glycogen molecule is called the reducing end and the left end is called the non-reducing end.
Statement 2: Glycogen is a homopolymer of alpha glucose.
1. Only Statement 1 is correct
2. Only Statement 2 is correct
3. Both Statement 1 and Statement 2 are correct
4. Both Statement 1 and Statement 2 are incorrect

Subtopic:  Carbohydrates: Starch & Glycogen |
 76%
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Consider the given two statements:
Statement I: Iodine test can detect the presence of starch but not of cellulose in a given sample.
Statement II: Starch forms helical secondary structure and can hold iodine molecules while cellulose does not contain complex helices and hence cannot hold iodine.
 
1. Both Statement I and Statement II are correct and Statement II correctly explains Statement I
2. Both Statement I and Statement II are correct but Statement II does not correctly explain Statement I
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct
Subtopic:  Carbohydrates | Carbohydrates: Starch & Glycogen |
 88%
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The true macromolecular fraction of any living tissue or cell includes all the following biomolecules except:
1. Nucleic acids 2. Polysaccharides
3. Lipids 4. Proteins
Subtopic:  Introduction |
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The chemical components of a nucleotide do not include:
1. A heterocyclic compound 2. A monosaccharide
3. A phosphate 4. A saturated fatty acid
Subtopic:  Nucleic Acid: Nucleotides |
 85%
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Identify the given nitrogenous base:
1. Thymine 2. Uracil
3. Adenine 4. Guanine
Subtopic:  Nucleic Acid: Nucleotides | The DNA |
 78%
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Identify the given molecules:
I II
1. 2’ deoxyribose Ribose
2. Ribose 2’ deoxyribose
3. Adenosine Adenylic acid
4. α glucose β glucose
Subtopic:  Nucleic Acid |
 73%
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Identify the correct statements:
I: The level of protein structure organization that provides the positional information of amino acids in a protein is called as the primary structure.
II: Only right handed helices are observed in proteins seen in living organisms.
III: Tertiary structure is absolutely necessary for the many biological activities of proteins.
 
1. Only I and II 2. Only I and III
3. Only II and III 4. I, II and III
Subtopic:  Proteins |
 68%
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The given figure shows:

1. two amino acids linked by a peptide bond formed due to dehydration synthesis
2. two nucleotides linked by a dinucleotide bond formed due to dehydration synthesis
3. two amino acids linked by a peptide bond forming a zwitter ion
4. two nucleotides linked by an ester bond due to hydrolysis
Subtopic:  Amino Acids |
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In a nucleic acid:
I: a phosphate moiety links the 5’ carbon of one sugar of one nucleotide to the 1’ carbon of the sugar of the succeeding nucleotide.
II: the backbone of the strand is made up of alternate sugar and nitrogenous bases.
1. Only I is correct
2. Only Ii is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  The DNA | Double Helix : Watson & Crick |
 52%
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The metabolic pathways in a living system:
I. are linear or circular                                   
II. are series of linked reactions
III. are characterized by a definite rate and direction of flow of metabolites through them
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic:  METABOLIC BASIS FOR LIVING (OLD NCERT) |
 71%
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