allosteric

"The prisoners were kept in a secure compound. "

"The building of the bridge will be completed in a couple of weeks."

"The key functions of a refrigerator are to keep food cold and prevent spoilage. "

"The school's new regulation about cell phone use during class aims to improve student focus. "

"The company required conformation to the new safety regulations from all employees to ensure a safer work environment. "

"I brush my teeth regularly to prevent them from turning yellow."

"Pit row was abuzz with activity."

"I want to switch this red dress for a green one."

"The tadpole changed into a frog.   Stock prices are constantly changing."

"The school's new addition includes a modern necessary. "

"We have an available candidate."

"An inactive boy, he rarely exercised and preferred to stay indoors."