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Q. No.If the % weight of elements in Earth’s crust and human body are compared, all the following will have a higher % composition in human body except:
1. Carbon
2. Oxygen
3. Nitrogen
4. Calcium
Subtopic: Introduction |
58%
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Subtopic: Element Analysis |
87%
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The use of sulpha drugs used to slow down the growth of bacterial colonies is based on the principle of:
1. antigen-antibody interaction
2. competitive inhibition
3. allosteric feedback inhibition
4. mutagenesis
1. antigen-antibody interaction
2. competitive inhibition
3. allosteric feedback inhibition
4. mutagenesis
Subtopic: Enzyme Inhibition |
84%
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The number of types of units present in the structure of adult human hemoglobin is/are:
1. 1
2. 2
3. 3
4. 4
1. 1
2. 2
3. 3
4. 4
Subtopic: Introduction to Proteins |
52%
From NCERT
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Secondary metabolites | Class | ||
| A. | Vinblastine | P. | Polymeric substances |
| B. | Concanavalin A | Q. | Drugs |
| C. | Rubber | R. | Toxins |
| D. | Ricin | S. | Lectins |
Codes:
| A | B | C | D | |
| 1. | R | S | P | Q |
| 2. | Q | S | P | R |
| 3. | Q | P | R | S |
| 4. | P | Q | R | S |
Subtopic: Primary & Secondary Metabolites |
89%
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Consider the given two statements:
| Assertion (A): | In solutions of different pH, the structure of amino acids changes. |
| Reason (R): | A particular property of amino acids is the ionizable nature of –NH2 and –COOH groups. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Amino Acids |
83%
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Tyrosine, phenylalanine and tryptophan are all:
1. Acidic amino acids
2. Sulphur containing amino acids
3. Essential amino acids
4. Aromatic amino acids
1. Acidic amino acids
2. Sulphur containing amino acids
3. Essential amino acids
4. Aromatic amino acids
Subtopic: Amino Acids |
91%
From NCERT
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The true macromolecular fraction of any living tissue or cell includes all the following except:
| 1. | polynucleotides | 2. | lipids |
| 3. | polysaccharides | 4. | polypeptides |
Subtopic: Element Analysis |
89%
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________ is the most abundant protein in animal world and _________ is the most abundant protein in
the whole of the biosphere.
1. Collagen, RuBisCO
2. RuBisCO, Collagen
3. Keratin, Collagen
4. Haemoglobin, RuBisCO
the whole of the biosphere.
1. Collagen, RuBisCO
2. RuBisCO, Collagen
3. Keratin, Collagen
4. Haemoglobin, RuBisCO
Subtopic: Proteins |
95%
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Prosthetic groups are distinguished from other cofactors in that they:
I: are organic compounds.
II: are tightly bound to the apoenzyme.
1. Only I is true
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
I: are organic compounds.
II: are tightly bound to the apoenzyme.
1. Only I is true
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Enzyme Cofactors |
From NCERT
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