The compettive inhibitor does not affect the rate of breakdown of the enzyme -substrate complex.

The presence of the competitive inhibitor decreases the K_m of the enzyme for the substrate

A competitive inhibitor reacts reversibly with the enzyme to form and enzyme-inhibitor complex.

In competitive inhibition, the inhibitor molecules is not chemically changed by the enzyme.

Maltose

Sucrose

Lactose

Ribose 5-phosphate

Substrate binds with enzyme at its active site.

Addition of lot of succinate does not reverse the inhibition of succinic dehydrogenase by malonate.

A non-competitive inhibitor binds the enzyme at a site distinct from that which binds the substrate.

Malonate is a competitive inhibitor of succinic dehydrogenase.

Enzymes are denaturated at high temperatures.

Enzymes are mostly proteins but some are lipids also.

Enzymes are highly specific.

Enzymes require optimum pH and temperature for maximum activity.