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Q. No.GLUT-4, that enables glucose transport into the cells, is a:
1.
protein
2.
amino acid
3.
lipid
4.
ribonucleoprotein
Subtopic: Proteins |
90%
Level 1: 80%+
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The number of correct statements from the given statements are:
1. 2
2. 3
3. 4
4. 5
| I: | Almost all enzymes are proteins. |
| II: | Some nucleic acids can behave like enzymes. |
| III: | No enzyme in living organisms can function above 40 °C. |
| IV: | Enzymes are the reason that chemicals react with each other. |
| V: | Enzymes are not sensitive to pH in their environment. |
2. 3
3. 4
4. 5
Subtopic: Enzymes | Enzyme Catalysis | Factors Affecting Enzyme Catalysis Reaction |
Level 3: 35%-60%
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Consider the two statements:
1. Statement I is correct; Statement II is incorrect
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Palmitic acid has 16 carbons including carboxyl carbon. |
| Statement II: | Arachidonic acid has 20 carbon atoms including the carboxyl carbon. |
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Lipids |
93%
Level 1: 80%+
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If we represent the chemical composition of living tissue from abundance point of view and arrange them class-wise, the second most abundant chemical in living organisms is:
1. Water
2. Protein
3. Carbohydrate
4. Nucleic acid
1. Water
2. Protein
3. Carbohydrate
4. Nucleic acid
Subtopic: Element Analysis |
79%
Level 2: 60%+
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The two strands of polynucleotides in a DNA double helix:
| I. | are identical. |
| II. | are complementary. |
| III. | are parallel. |
| IV. | are antiparallel. |
| 1. | Only I and II are correct |
| 2. | Only III and IV are correct |
| 3. | Only I and III are correct |
| 4. | Only II and IV are correct |
Subtopic: The DNA |
93%
Level 1: 80%+
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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:
| Column-I | Column-II | ||
| A. | Lyases | P. | catalyse removal of groups from substrates by mechanisms other than hydrolysis, leaving double bonds |
| B. | Ligases | Q. | catalyse the linking together of 2 compounds |
| C. | Transferases | R. | catalyse the transfer of a group other than hydrogen between a pair of substrates |
| D. | Isomerases | S. | catalyse inter-conversion of optical, geometric or positional isomers |
Codes:
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | Q | P | R | S |
| 3. | P | Q | S | R |
| 4. | R | R | Q | S |
Subtopic: Enzymes Classification |
90%
Level 1: 80%+
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Coenzymes nicotinamide adenine dinucleotide (NAD) and NADP contain the vitamin:
| 1. | Riboflavin | 2. | Pantothenic acid |
| 3. | Niacin | 4. | Pteroylglutamic acid |
Subtopic: Enzyme Cofactors |
92%
Level 1: 80%+
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The substrate has to go through a much higher energy state or transition state:
| I: | if it is an exothermic or spontaneous reaction. |
| II: | it is an endothermic or energy requiring reaction. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Mechanism of Enzymes |
62%
Level 2: 60%+
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When the co-factor is removed from the enzyme:
1. catalytic activity is lost
2. catalytic activity is reduced
3. catalytic activity increases
4. catalytic activity remains same
1. catalytic activity is lost
2. catalytic activity is reduced
3. catalytic activity increases
4. catalytic activity remains same
Subtopic: Enzyme Cofactors |
84%
Level 1: 80%+
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Polysaccharides are components of cell wall in:
| I: | Plants |
| II: | Fungi |
| III: | Eubacteria |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Carbohydrates |
60%
Level 2: 60%+
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