Answer the question on the basis of passage given below:

Adsorption is the phenomenon of attracting and retaining the molecules of a substance on the surface of a solid resulting into a higher concentration on the surface than in the bulk. The variation in the amount of gas adsorbed by the adsorbent with pressure at constant temperature is expressed as isotherm. A catalyst is a substance, when adsorbed enhances the rate of a chemical reaction without itself getting used up in the reaction. Depending on the type of the particles of the dispersed phase, colloids are classified as multimolecular, macromolecular and associated colloids and soap is such an example of associated colloids. Colloids show various properties such as Tyndall effect, colour, Brownian movement and charge development. There are positively charged sols and negatively charged sols. Due to this, electrophoresis and electroosmosis are shown by colloids.

Enzyme catalysts

A. are highly efficient.
B. decrease their activity in the presence of co-enzymes.
C. are highly active under optimum pH.
D. are not specific in nature.
E. does not work in the presence of inhibitors.

Choose the correct answer from the options given below:

A, C and E only

The correct answer is Option (1) → A, C and E only.

Let us look at each of the given statements:

A. Are highly efficient:

This statement is true. Enzymes can accelerate reactions by factors of millions compared to non-catalyzed reactions, making them highly efficient catalysts.

B. Decrease their activity in the presence of co-enzymes:

This statement is false. Coenzymes are non-protein molecules that assist enzymes in catalysis. They often enhance enzyme activity rather than decrease it.

C. Are highly active under optimum pH:

This statement is true. Enzymes have an optimum pH at which their activity is maximized. Deviations from this pH can lead to decreased activity or denaturation.

D. Are not specific in nature:

This statement is false. Enzymes are highly specific for their substrates, meaning they usually catalyze only one type of reaction or act on specific substrates.

E. Does not work in the presence of inhibitors:  This statement is true. Inhibitors can decrease or block the activity of enzymes, effectively stopping them from functioning properly.

Conclusion:

The correct combination of statements regarding enzyme catalysts is A, C, and E only.