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Q. No.In the enzyme which catalyses the breakdown of:
\(\mathrm{H}_2 \mathrm{O}_2 \rightarrow \mathrm{H}_2 \mathrm{O}+\mathrm{O}_2\)
the prosthetic group is:
1.
Nicotinamide adenine dinucleotide
2.
Haem
3.
Zinc
4.
Niacin
Subtopic: Enzyme Cofactors |
69%
Level 2: 60%+
NEET - 2022
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Match the following and select the correct option:
1. i-a, ii-c, iii-d
2. i-a, ii-b, iii-c
3. i-b, ii-c, iii-d
4. i-c, ii-d, iii-a
| Column I | Column II | ||
| i. | Simple lipids | a. | Cholesterol |
| ii. | Compound lipids | b. | Vanaspati ghee |
| iii. | Sterols | c. | Glycerol |
| d. | Lecithin |
2. i-a, ii-b, iii-c
3. i-b, ii-c, iii-d
4. i-c, ii-d, iii-a
Subtopic: Lipids |
83%
Level 1: 80%+
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The curve given below shows enzymatic activity with relation to change in conditions.
What do the axes (X and Y) represent?
What do the axes (X and Y) represent?
| X-axis | Y-axis | |
| 1. | Temperature | Enzymatic activity |
| 2. | Substrate concentration | Enzymatic activity |
| 3. | Enzymatic activity | Temperature |
| 4. | Enzymatic activity | pH |
Subtopic: Factors Affecting Enzyme Catalysis Reaction |
67%
Level 2: 60%+
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Match the following and select the correct option.
1. i-q, ii-s, iii-r, iv-p
2. i-q, ii-p, iii-s, iv-r
3. i-p, ii-q, iii-r, iv-s
4. i-r, ii-s, iii-p, iv-q
| Column I | Column II | ||
| i. | Lipid | p. | Glutamic acid |
| ii. | Amino acid | q. | Glycerol |
| iii. | Protein | r. | Starch |
| iv. | Carbohydrate | s. | Collagen |
2. i-q, ii-p, iii-s, iv-r
3. i-p, ii-q, iii-r, iv-s
4. i-r, ii-s, iii-p, iv-q
Subtopic: Amino Acids |
91%
Level 1: 80%+
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Match the following lists:
1. i-a, ii-c, iii-b, iv-d
2. i-d, ii-a, iii-c, iv-b
3. i-c, ii-d, iii-a, iv-b
4. i-c, ii-b, iii-d, iv-a
| List I | List II | ||
| i. | Lyases | a. | Enzymes catalyzing hydrolysis of ester ether, peptide, glycosidic, \(C-C\), \(C-\)halide or \(P-N\) bonds |
| i. | Ligases | b. | Enzymes catalyzing a transfer of a group G between a pair of substrate \(S\) and \(S'\) |
| ii. | Hydrolases | c. | They catalyse removal of groups from substrate by mechanisms other than hydrolysis leaving double bonds. |
| iv. | Transferases | d. | They catalyse the linking together of 2 compounds |
2. i-d, ii-a, iii-c, iv-b
3. i-c, ii-d, iii-a, iv-b
4. i-c, ii-b, iii-d, iv-a
Subtopic: Enzymes Classification |
75%
Level 2: 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 |
60%
Level 2: 60%+
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State whether the given statements are true or false:
| Statement I: | Palmitic acid has 16 carbons including carboxyl carbon. |
| Statement II: | Arachidonic acid has 20 carbon atoms including the carboxyl carbon. |
| Statement III: | Adenosine, guanosine, thymidine, uridine and cytidine are nucleosides. |
| Statement IV: | Nucleic acids like DNA and RNA consist of nucleotides only. |
| Statement I | Statement II | Statement III | Statement IV | |
| 1. | T | T | T | T |
| 2. | T | T | F | F |
| 3. | F | F | T | T |
| 4. | F | F | F | F |
Subtopic: Nucleic Acid: Nucleotides | Lipids: Glycerolipids, Phospholipids & Glycerol |
81%
Level 1: 80%+
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All the following are aromatic amino acids except:
| 1. | tyrosine | 2. | phenylalanine |
| 3. | tryptophan | 4. | threonine |
Subtopic: Amino Acids |
85%
Level 1: 80%+
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Which of the secondary metabolites is an important anti-cancer drug?
| 1. | Ricin | 2. | Abrin |
| 3. | Vincristine | 4. | Atropine |
Subtopic: Primary & Secondary Metabolites |
71%
Level 2: 60%+
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Which element makes up the maximum % weight of the human body?
| 1. | carbon | 2. | hydrogen |
| 3. | nitrogen | 4. | oxygen |
Subtopic: Introduction |
67%
Level 2: 60%+
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