What are competitive inhibitors?

Explanation

Molecules that resemble the shape of the substrate and may compete to occupy the active site of enzyme are known as competitive inhibitors. eg. the enzyme that catalyses the reaction between carbon di oxide and the Co, acceptor molecule in photosynthesis, known as ribulose biphosphate carboxylase oxygenase (RUBISCO) is competitively inhibited by oxygen/carbon-di-oxide in the chloroplast.