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Q. No.Which of the following is the best evidence for the lock and key theory of enzyme action ?
1. All isolated enzymes have been identified as protein
2. compounds similar in structure to the substrate inhibit the reaction
3. Enzymes are found in living organisms and speed up certain reaction
4. Enzymes determine the direction of a reaction
Subtopic: Enzyme Inhibition |
66%
From NCERT
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Co-enzyme is
1. Always a protein
2. Often a metal
3. Always an inorganic compound
4. Often a vitamin
1. Always a protein
2. Often a metal
3. Always an inorganic compound
4. Often a vitamin
Subtopic: Enzyme Cofactors |
58%
From NCERT
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Match the protein in Column-I with its occurrence in Column-II and choose the correct option.
1. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
2. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
3. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
4. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
| Column-I | Column-II | ||
| (a) | Mucin | (i) | pulse |
| (b) | Heparin | (ii) | saliva |
| (c) | Legumelin | (iii) | hair |
| (d) | Karatin | (iv) | blood |
1. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
2. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
3. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
4. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
Subtopic: Introduction to Proteins |
80%
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Match the following and select the correct option.
1. i-a, ii-c, iii-d, iv-b
2. i-a, ii-b, iii-c, -iv-d
3. i-b, ii-c, iii-d, iv-a
4. i-b, ii-d, iii-a, iv-c
| Columns I (Sugars) |
Column II (No. of Carbons) |
||
| i. | Erythrose | a. | Five |
| ii. | Glucose | b. | Four |
| iii. | Ribose | c. | Seven |
| iv. | Sedoheptulose | d. | Six |
2. i-a, ii-b, iii-c, -iv-d
3. i-b, ii-c, iii-d, iv-a
4. i-b, ii-d, iii-a, iv-c
Subtopic: Carbohydrates: Introduction |
84%
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Match the following and select the correct option.
1. i-a, ii-c, iii-d, iv-b
2. i-a, ii-b, iii-c, -iv-d
3. i-b, ii-c, iii-d, iv-a
4. i-b, ii-d, iii-a, iv-c
| Columns I | Column II | ||
| i. | Starch | a. | Animal storage molecule |
| ii. | Cellulose | b. | Plan storage molecule |
| iii. | Glycogen | c. | Heparin |
| iv. | Heteropoly-saccharide | d. | Plant cell wall component |
2. i-a, ii-b, iii-c, -iv-d
3. i-b, ii-c, iii-d, iv-a
4. i-b, ii-d, iii-a, iv-c
Subtopic: Carbohydrates: Starch & Glycogen |
87%
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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 |
81%
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Identify (a) and (b) and choose the correct option
Unsaturated fatty acids show (a) bond/s between carbon atoms of hydrocarbon chain and they are generally (b) at room temperature.
Unsaturated fatty acids show (a) bond/s between carbon atoms of hydrocarbon chain and they are generally (b) at room temperature.
| (a) | (b) | |
| 1. | Double | Liquid |
| 2. | Triple | Solid |
| 3. | Single | Liquid |
| 4. | Double | Solid |
Subtopic: Lipids: Glycerolipids, Phospholipids & Glycerol |
60%
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The given reaction is catalysed by (a) which belongs to (b) class of enzyme Glucose + ATP →Glucose - 6 - phosphate + ADP
| (a) | (b) | |
| 1. | Sucrase | Hydrolases |
| 2. | Glucokinase | Transferases |
| 3. | Mutase | Isomerases |
| 4. | Glucokinase | Lyases |
Subtopic: Enzymes Classification |
59%
From NCERT
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Match the monosaccharide in column I with its type in column-II and choose the correct option.
1. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
2. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
3. (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
4. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
| Column-I | Column-II | ||
| (a) | Sedoheptulose | (i) | Hexose |
| (b) | Glyceraldehyde | (ii) | Tetrose |
| (c) | Erythrose | (iii) | Heptose |
| (d) | Galactose | (iv) | Triose |
1. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
2. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
3. (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
4. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
Subtopic: Lipids: Glycerolipids, Phospholipids & Glycerol |
55%
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Match column - I and column - II with reference to enzymes and select the correct option.
1. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
2. (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
3. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
4. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
| Column-I | Column-II | ||
| (a) | Transferase | (i) | aldolase |
| (b) | Hydrolase | (ii) | alcohol dehydrogenase |
| (c) | Lyase | (iii) | sucrase |
| (d) | Oxidoreductase | (iv) | glucokinase |
1. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
2. (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
3. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
4. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
Subtopic: Enzymes Classification |
56%
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