Competitive inhibition can be explained by which of the following models?

Question

Quizplus · Accepted Answer

Both the induced fit model and the lock and key model can explain competitive inhibition. In competitive inhibition, a molecule similar in shape to the substrate binds to the active site of the enzyme, preventing the substrate from binding. The lock and key model explains this by the inhibitor molecule having a similar shape to the substrate and fitting into the active site like a key would fit into a lock. The induced fit model explains this by the enzyme changing its shape slightly to accommodate the inhibitor molecule, which blocks the substrate from binding to the active site. Therefore, the best choice is C, both a and b.

Competitive Inhibition Can Be Explained by Which of the Following