Prepare for the Foundations of Biology Exam 1. Dive into key biological concepts with multiple choice questions, hints, and explanations. Ace the exam with our efficient study methods!

Multiple Choice

Inhibitors generally have what effect on enzyme-catalyzed reactions?

Inhibitors reduce how fast an enzyme can work by blocking its ability to interact with the substrate. They bind to the enzyme (or to the enzyme–substrate complex) in ways that prevent proper catalysis, so the reaction proceeds more slowly or stops altogether. They do not provide energy to speed things up; their effect is to hinder the enzyme’s action. While some inhibitors can permanently inactivate an enzyme, the general outcome described here is a slowing or stopping of the reaction.

Inhibitors reduce how fast an enzyme can work by blocking its ability to interact with the substrate. They bind to the enzyme (or to the enzyme–substrate complex) in ways that prevent proper catalysis, so the reaction proceeds more slowly or stops altogether. They do not provide energy to speed things up; their effect is to hinder the enzyme’s action. While some inhibitors can permanently inactivate an enzyme, the general outcome described here is a slowing or stopping of the reaction.