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

At each step of ascent, the helical strand of DNA turns

Almost all enzymes are:

In the absence of carbonic anhydrase in the human body, the reaction between carbon dioxide and water leading to the formation of carbonic acid:

Which of these can have catalytic activity?

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

The substrate concentration at which the enzyme catalyzed reaction achieves ½ Vmax is its ____ value.

In general, with every 10^oC rise in the temperature [in the range 0^oC to 40^oC], the rate of enzyme catalyzed reaction:
1. Becomes half
2. Gets doubled
3. Remains same
4. There is no such correlation in general

Most common enzyme inhibition used in control of bacterial pathogens is:

Enzymes that catalyze removal of groups from substrates by mechanisms other than hydrolysis leaving double bonds are: