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 |
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The pitch of DNA helix is:

1. 0.34 nm 2. 3.4 nm
3. 34 nm 4. 340 nm
Subtopic:  Nucleic Acid | The DNA |
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The compound from which cholesterol is formed is:
1. Mevalonic acid
2. Butyric acid
3. Alpha ketoglutaric acid
4. Acetic acid

Subtopic:  Lipids |
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The blood concentration of blood glucose in a normal healthy human ranges between:
1. 4.5 – 5.0 mM
2. 45 – 50 mM
3. 70 – 100 nM
4. 100 – 150 mM

Subtopic:  Introduction |
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The correct adjective for “living state” would be:
1. An equilibrium steady state
2. An equilibrium non steady state
3. A non equilibrium steady state
4. A non equilibrium non steady state

Subtopic:  Introduction |
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Almost all enzymes are:

1. Polysaccharides 2. Proteins
3. Nucleic acids 4. Lipids
Subtopic:  Enzymes |
 93%
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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 |
 85%
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Which of these can have catalytic activity?

1. RNA 2. DNA
3. Prostaglandins 4. Sterols
Subtopic:  Enzymes |
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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 |
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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 |
 94%
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