This is the 7741st most frequent Japanese word.
受から
"受から" is the stem form of the verb "受かる," which means "to pass" or "to succeed" (e.g., in an exam).
Here, '受かる' (ukaru) means 'to pass' and refers specifically to succeeding in an entrance examination.
彼女は大学の入学試験に受かりました。
She passed the university entrance exam.
This sentence uses '受かるかどうか' (ukaru ka dou ka) to express uncertainty regarding passing and links it to conditional effort.
受かるかどうかは、努力次第です。
Whether you pass or not depends on your efforts.
In this sentence, '受からない' (ukaranai) is the negative form of '受かる', meaning 'to pass', used to express doubt about passing an examination.