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Q. No.Read the statements given below and select the option that correctly identifies them as True(T) or False(F).
a.
Alanine is a sulphur containing amino acid
b.
Tyrosine is an aromatic amino acid
c.
Uracil is a substituted pyrimidine found in nucleic acids containing deoxyribose sugar
d.
The nitrogenous bases are projected more or less perpendicular to the sugar-phosphate backbone of polynucleotide chain
a b c d
1. F T T T
2. F T F T
3. T F T T
4. T T T T
Subtopic: Amino Acids |
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Match column I with column II and select the correct option:
1. a(iii), b(i), c(iv), d(ii)
2. a(i), b(ii), c(iii), d(iv)
3. a(iii), b(i), c(ii), d(iv)
4. a(ii), b(i), c(iii), d(iv)
| Column I | Column II | ||
| a. | The structural component of the cell wall of fungi | (i) | Malonate |
| b. | Competitive inhibitor of succinic dehydrogenase |
(ii) | Sucrose |
| c. | Glycosidic bond | (iii) | Chitin |
| d. | Alkaloid used as painkiller | (iv) | Morphine |
1. a(iii), b(i), c(iv), d(ii)
2. a(i), b(ii), c(iii), d(iv)
3. a(iii), b(i), c(ii), d(iv)
4. a(ii), b(i), c(iii), d(iv)
Subtopic: Primary & Secondary Metabolites | Carbohydrates: Glycosidic Bond & Disaccharide | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
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From NCERT
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| Assertion(A): | When glucose is catabolised to lactic acid, energy is liberated. |
| Reason(R): | In an exothermic reaction, the energy level of ‘Product’ (lactic acid) is lower than that of ‘Substrate’ (glucose). |
| 1. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
| 2. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 3. | (A) is true, (R) is false |
| 4. | (A) is false, (R) is true |
Subtopic: Enzyme Catalysis | Introduction |
From NCERT
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Match column-I with column-II and select the correct option
1. a(ii), b(iv), c(iii), d(i)
2. a(iii), b(iv), c(ii), d(i)
3. a(i), b(iv), c(ii), d(iii)
4. a(iii), b(ii), c(iv), d(i)
| Column-I | Column-II | ||
| a. | Retentate | (i) | Diterpenes |
| b. | Aromatic amino acid | (ii) | Valine |
| c. | Neutral amino acid | (iii) | Nucleic acids |
| d. | Terpenoids | (iv) | Tryptophan |
1. a(ii), b(iv), c(iii), d(i)
2. a(iii), b(iv), c(ii), d(i)
3. a(i), b(iv), c(ii), d(iii)
4. a(iii), b(ii), c(iv), d(i)
Subtopic: Introduction | Primary & Secondary Metabolites |
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From NCERT
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Consider the statements 'A' and 'B' and select the correct option:
1. Both statements A and B are correct
2. Only statement A is correct
3. Only statement B is correct
4. Both statements A and B are incorrect
| Statement A: | Just like inorganic catalysts, enzymes work efficiently at high temperatures and high pressures |
| Statement B: | Thermal stability is an important quality of enzymes isolated from thermophilic organisms |
2. Only statement A is correct
3. Only statement B is correct
4. Both statements A and B are incorrect
Subtopic: Enzymes |
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From NCERT
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Read the statements given below carefully:
How many of the statements given above are correct?
| (a) | Lipids are generally water soluble. |
| (b) | Dietary proteins are the source of essential amino acids. |
| (c) | Paper made from plant pulp and cotton fibre is cellulosic in nature. |
| (d) | In a nucleic acid, the bond between the phosphate and hydroxyl group of sugar is an ester bond. |
| 1. | One | 2. | Two |
| 3. | Three | 4. | Four |
Subtopic: Nucleic Acid | Proteins | Carbohydrates | Lipids | Carbohydrates: Glycosidic Bond & Disaccharide |
75%
From NCERT
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Read the statements given below and select the correct option:
| (a) | In glycogen, the right end is the reducing one |
| (b) | Cellulose and starch form complex helices |
| (c) | Starch is the main structural component of papers made from plant pulp |
| 1. | Statements (a) and (b) are correct while statement (c) is incorrect |
| 2. | Statements (a) and (c) are correct while statement (b) is incorrect |
| 3. | Statements (b) and (c) are incorrect while statement (a) is correct |
| 4. | Statements (a) and (c) are incorrect while statement (b) is correct |
Subtopic: Carbohydrates: Starch & Glycogen |
58%
From NCERT
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Read the given statements carefully and select the correct option
Statement A: Tyrosine contains two aromatic rings in its structure
Statement B: Sulphur is an integral part of tyrosine
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is correct
4. Only statement B is correct
Statement A: Tyrosine contains two aromatic rings in its structure
Statement B: Sulphur is an integral part of tyrosine
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is correct
4. Only statement B is correct
Subtopic: Proteins |
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Read the following given statements with respect to nucleic acids.
How many of the above statements are incorrect?
1. One
2. Two
3. Three
4. Four
| (a) | DNA possesses ribose sugar in its structure. |
| (b) | Thymine bonds with cytosine through two hydrogen bonds. |
| (c) | The rise per base pair in B-DNA would be 3.4 Å. |
| (d) | The pitch of B-DNA would be 34 nm. |
How many of the above statements are incorrect?
1. One
2. Two
3. Three
4. Four
Subtopic: The DNA |
From NCERT
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| Assertion (A): | Co-enzymes are inorganic compounds that bind tightly with the apoenzyme to form a holoenzyme. |
| Reason (R): | Co-enzymes and prosthetic groups are cofactors. |
| 1. | (A) is false but (R) is true. |
| 2. | (A) is true but (R) is false. |
| 3. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
Subtopic: Enzyme Introduction |
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