A study tool built for MCB 181R students at the University of Arizona.

Jontae Couzens
Teaching assistant, MCB 181R · University of Arizona
I am a teaching assistant for MCB 181R at the University of Arizona. I built this app to solve a common problem: students work through past exams once and stop. The app makes each question come back until you can answer it two times in a row with confidence.
Reach me at couzens@arizona.edu.
The problem. Most students work through past exams one time and stop. One pass tells you what you got right today. It does not tell you what you can recall next week under stress.
The loop. Answer a question. Rate how confident you feel (one to five). If you got the question right and you feel confident, the app tracks a point of mastery. If you got the question wrong, or you feel unsure, the app brings the question back. You need two correct high-confidence answers in a row to master the question. One wrong answer resets the count.
Why it works. Two research patterns back the loop. Active recall (pull the answer from memory) beats re-reading. Spaced retrieval (hit the same question at spaced intervals) beats one long study block. The confidence rating is the third piece: it forces you to notice when you got the answer right by luck.
All banks come from past MCB 181R exams. Every question has written explanations for the correct answer and every incorrect answer. Free to use. No login required.
Cell membrane structure, transport, signaling
Cell membrane structure, transport, signaling
Amino acids, protein structure, nucleic acids, transcription, translation, gene regulation
Amino acids, protein structure & folding, nucleic acids, transcription, translation, gene regulation
Gene regulation, epigenetics, DNA replication, cell cycle, mitosis & meiosis
Gene regulation, epigenetics, DNA replication, cell cycle, mitosis, meiosis
Covers Mendelian genetics, linkage, pedigrees, X-linked inheritance, and cellular respiration.
Comprehensive final exam
Combined from the 2 exams this content used to be spread across (old Exam 3 + old Exam 4): Mendelian genetics & inheritance + cellular respiration
No. The app opens and runs without a login. Your progress saves to your browser.
Something wrong? Something missing?
Send a message with a bug, a wrong answer, or a suggestion. I read every email.