Final answer:
Following the deposition of the emperor by Reza, the Shah's family fled Iran, opponents of the new Islamic government faced severe repercussions, societal and governmental structures transformed, and a new constitution was implemented.
Step-by-step explanation:
When the emperor was deposed by Reza, a series of significant events unfolded. Firstly, the Shah and his family were forced to flee the country. Subsequently, supporters of the new regime, led by Ayatollah Khomeini, greatly opposed those loyal to the Shah. The enactment of a new constitution turned the nation into an Islamic republic, enforcing Islam as the official religion and mandating that laws conform to Islamic teachings. Those opposing the new government faced severe consequences, from being displaced to facing execution. Lastly, traditional power structures were dismantled, with erstwhile nobilities seeing their status and power eroded, underscoring drastic societal changes.