In this video explain ALL the content required for the "Photosynthesis" section for AQA A Level Biology. This includes: the lightdependent reaction, lightindependent reaction and limiting factors of photosynthesis.
Time stamps are in the comments.
The content crosses over with other exam boards too.
I also go through some exam questions and explain the mark schemes.

Please comment if you have any questions, I'll be more than happy to answer them! :)