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Q. No.Quaternary structure is seen in proteins that:
1.
act as biochemical catalysts
2.
are embedded within the plasma membrane
3.
are assembly of more than one subunits
4.
do not have any structural role in the cell
Subtopic: Proteins |
74%
Level 2: 60%+
Hints
The double helix model of DNA by Watson and Crick exhibits its:
1. Primary structure
2. Secondary structure
3. Tertiary structure
4. Quaternary structure
1. Primary structure
2. Secondary structure
3. Tertiary structure
4. Quaternary structure
Subtopic: Double Helix : Watson & Crick |
73%
Level 2: 60%+
Hints
The strands of the DNA double helix are:
| 1. | identical |
| 2. | coiled around each other |
| 3. | parallel to each other |
| 4. | complementary to each other |
Subtopic: Nucleic Acid | The DNA |
73%
Level 2: 60%+
Hints
At each step of ascent, the helical strand of DNA turns
| 1. | 36 degree | 2. | 34 degree |
| 3. | 20 degree | 4. | 180 degree |
Subtopic: Nucleic Acid | The DNA |
70%
Level 2: 60%+
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Subtopic: Enzymes |
92%
Level 1: 80%+
Hints
In the absence of carbonic anhydrase in the human body, the reaction between carbon dioxide and water leading to the formation of carbonic acid:
| 1. | Will not occur | 2. | Will slow down considerably |
| 3. | Will get faster | 4. | Will remain unaltered |
Subtopic: Enzymes |
83%
Level 1: 80%+
Hints
Subtopic: Enzymes |
75%
Level 2: 60%+
Hints
Enzymes speed up the chemical reactions by:
| 1. | Getting used up in the reaction |
| 2. | Formation of different products |
| 3. | Converting endothermic reactions to exothermic |
| 4. | Lowering activation energy |
Subtopic: Enzymes | Factors Affecting Enzyme Catalysis Reaction |
87%
Level 1: 80%+
Hints
The substrate concentration at which the enzyme catalyzed reaction achieves ½ Vmax is its ____ value.
| 1. | Km | 2. | Kcat |
| 3. | pKa | 4. | Q10 |
Subtopic: Enzyme Catalysis | Factors Affecting Enzyme Catalysis Reaction |
91%
Level 1: 80%+
Hints
In general, with every 10oC rise in the temperature [in the range 0oC to 40oC], the rate of enzyme catalyzed reaction:
| 1. | Becomes half | 2. | Gets doubled |
| 3. | Remains same | 4. | There is no such correlation in general |
Subtopic: Enzyme Catalysis |
81%
Level 1: 80%+
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