Enzyme Catalysis

Q. If a reaction depends upon shape of catalyst, size of reactant and product molecules then the reaction is called shape-selective catalysis.

1. True
2. False

Q. A catalyst in finely divided form is the most effective, because :

1. more active sites are formed
2. more energy get stored in the catalyst
3. none of these
4. less surface area is available

Q. For the most efficient functioning of enzymes which of the following statements is not correct

1. An optimum temperature is needed
2. An optimum pH is needed
3. They are substrate specific
4. They always increase activation energy

Q. Which of the following metal is required by the enzymes that utilise ATP in phosphate transfer as the cofactor?

1. Ca
2. Be
3. K
4. Mg