This is a generous contribution from Hamda Aleissaee, who is currently studying at UAEU.
AP Biology
When I used to study AP Biology, I used to watch these two channels. They cover almost everything regarding AP Biology.
https://www.youtube.com/playlist?list=PLcR22fsoM8Rsi2k4JWwjkKlNo9Q_xSGMr
https://www.youtube.com/user/taitrt/playlists
Also this playlist by advanced placement
https://www.youtube.com/playlist?list=PLoGgviqq4847VchRdUdvbDPzsp9ResrjD
for past papers https://apcentral.collegeboard.org/courses/ap-biology/exam/past-exam-questions
So the exam is divided into two sections: 1) Multiple choice 2) Free response. Described here with the timing of each section https://apcentral.collegeboard.org/courses/ap-biology/exam
AP Calculus
Provided by advanced placement, this playlist:
https://www.youtube.com/playlist?list=PLoGgviqq4844keKrijbR_EPKRNIW6hahV
Exam description, timing, sections: https://apcentral.collegeboard.org/courses/ap-calculus-ab/exam
For past papers:https://apcentral.collegeboard.org/courses/ap-calculus-ab/exam/past-exam-questions
AP Physics C: M and EM
This exam is physics calculus-based and is divided into two exams. 1) Mechanics and 2)Electricity and magnetics
for Mechanics: https://www.youtube.com/playlist?list=PLoGgviqq48467T6PU5a6QwxNgUb5SgI9V
for electricity and magnetics: https://www.youtube.com/playlist?list=PLoGgviqq4845HXjP2hMrCCHw-koPsj7oY
I also used to watch this guy, he made it fun https://www.youtube.com/user/flippingphysics
Exams descriptions and Past papers
Mechanics: description, timing, sections: https://apcentral.collegeboard.org/courses/ap-physics-c-mechanics/exam
Past papers https://apcentral.collegeboard.org/courses/ap-physics-c-mechanics/exam/past-exam-questions
For Electricity and Magnetism: https://apcentral.collegeboard.org/courses/ap-physics-c-electricity-and-magnetism/exam
Past papers: https://apcentral.collegeboard.org/courses/ap-physics-c-electricity-and-magnetism/exam/past-exam-questions
AP Chemistry
Advanced placement videos https://www.youtube.com/playlist?list=PLoGgviqq4845Sy3UfnNh_PljzAptMR7MQ
For chemistry: the description of the exam, timing, and sections https://apcentral.collegeboard.org/courses/ap-chemistry/exam
For past papers: https://apcentral.collegeboard.org/courses/ap-chemistry/exam/past-exam-questions
Organic Chemistry
I also have some resources for organic chemistry. These are exam review papers provided by the American chemical society. I couldn't find a playlist, so I added a link to their channel.
