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Q. No.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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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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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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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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Consider the given two statements:
| Assertion (A): | High temperature destroys enzymatic activity. |
| Reason (R): | Enzymes generally function in a narrow range of temperatures. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but the (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Factors Affecting Enzyme Catalysis Reaction |
Level 3: 35%-60%
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The skeletal formula (showing numbering convention for substituent groups) of a simple aromatic ring shown below will be a part of the structure of all the following except:
| 1. | Thymine | 2. | Cytosine |
| 3. | Uracil | 4. | Adenine |
Subtopic: Nucleic Acid: Nucleotides |
58%
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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