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 |
 81%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


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 |
 71%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


The compound from which cholesterol is formed is:
1. Mevalonic acid
2. Butyric acid
3. Alpha ketoglutaric acid
4. Acetic acid

Subtopic:  Lipids |
Please attempt this question first.
Hints

advertisementadvertisement

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 |
 75%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


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 |
 75%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Almost all enzymes are:

1. Polysaccharides 2. Proteins
3. Nucleic acids 4. Lipids
Subtopic:  Enzymes |
 93%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


advertisementadvertisement

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 |
 84%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Which of these can have catalytic activity?

1. RNA 2. DNA
3. Prostaglandins 4. Sterols
Subtopic:  Enzymes |
 83%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


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 |
 92%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


advertisementadvertisement

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%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.