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Q. No.Consider the given two statements:
Statement I:
Fatty acids can be classified as saturated if they contain no double bonds between the carbon atoms.
Statement II:
Saturated fatty acids are typically more liquid at room temperature compared to unsaturated fatty acids.
1.
Statement I is correct; Statement II is correct
2.
Statement I is correct; Statement II is incorrect
3.
Statement I is incorrect; Statement II is correct
4.
Statement I is incorrect; Statement II is incorrect
Subtopic: Lipids: Fatty Acids |
Level 3: 35%-60%
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Consider the given two statements:
| Statement I: | In the Watson-Crick model of DNA, the two strands of polynucleotides run parallel to each other. |
| Statement II: | The nitrogen bases in the DNA double helix are projected perpendicular to the sugar-phosphate backbone and face inside. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Double Helix : Watson & Crick |
58%
Level 3: 35%-60%
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Which of the following forms part of a coenzyme?
| 1 | \(\mathrm{Zn}^{2+}\) | 2. | Lipase |
| 3. | Vitamin B2 | 4. | Lysine |
Subtopic: Enzyme Cofactors |
53%
Level 3: 35%-60%
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Identify the correct match based on the percentage distribution of elements:
| 1. | Sulphur (S): 3.3% in Earth's crust, 0.03% in the human body. |
| 2. | Magnesium (Mg): 2.1% in Earth's crust, 0.1% in the human body. |
| 3. | Calcium (Ca): 0.03% in Earth's crust, 1.5% in the human body. |
| 4. | Oxygen (O): 46.6% in the human body, 65% in the Earth's crust |
Subtopic: Introduction |
Level 3: 35%-60%
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Consider the given statements:
| Statement I: | Glycine is the only amino acid that lacks a chiral carbon. |
| Statement II: | All amino acids in proteins are heteropolymers. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Amino Acids |
Level 3: 35%-60%
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Consider the given two statements:
Choose the correct option:
| Assertion (A): | Malonate is a competitive inhibitor of succinic dehydrogenase enzyme. |
| Reason (R): | Malonate has a structure similar to fumarate, the product of succinate oxidation, and thus binds to the active site of succinic dehydrogenase. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Enzyme Inhibition |
Level 3: 35%-60%
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Consider the given two statements:
| Assertion (A): | Lipids are not considered macromolecules. |
| Reason (R): | Lipids are not polymers. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: Lipids |
Level 3: 35%-60%
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Coenzymes play crucial roles in metabolism by:
| 1. | Acting as a temporary storage of electrons and protons. |
| 2. | Serving as structural components of cell membranes. |
| 3. | Directly participating as one of the substrates in a reaction. |
| 4. | Acting as integral membrane proteins. |
Subtopic: Enzyme Cofactors |
Level 3: 35%-60%
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Which statement about amino acids is true?
| 1. | All amino acids possess a carboxyl group (-COOH) and an amino group (-NH2) in their side chain. |
| 2. | Amino acids serve as monomers for the synthesis of polysaccharides. |
| 3. | Only 10 amino acids are synthesized in the human body and the rest must be obtained from the diet. |
| 4. | The R-group (side chain) determines the unique characteristics and functions of each amino acid. |
Subtopic: Amino Acids |
Level 3: 35%-60%
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The molecule given in the figure is a:
| 1. | Triose sugar | 2. | Fatty acid |
| 3. | Gamma amino acid | 4. | Three carbon alcohol |
Subtopic: Lipids |
50%
Level 3: 35%-60%
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