General concepts are usually more important than specifics, this applies to all of them.
Below are my opinions for each pre Med course. I only listed requirements. MCAT usefulness are relative to my experiences. 2x taker
Bio 1+2- easy to medium course that requires a lot of memorization and proper slide studying. Study Time (1.5 X time spent in class)
MCAT usefulness: 8.5
Chem 1 - easy to barely medium course that seems intimidating but really requires practice to master. Study time (2-2.5 X time spent in class)
MCAT usefulness: 8
Chem 2 - medium to hard course that requires lots of practice because the math can get complex. Study time (2-3 X time spent in class)
MCAT usefulness: 5
Orgo 1 - difficulty unknown because the professor means a lot. Orgo is life and you should take the time to understand the basics. Without the basics you will fail. Without practice you will fail. Use memorization you will likely fail. This is not the class go memorize but to understand the mechanisms of molecules. You'll understand what I mean when u begin. Use colored pens/pencils to draw out molecules and mechanisms alike. Pray you have a good professor. Practice makes permanent. Study time (1-4 X time spent in class) You will either love or hate this class.
MCAT usefulness: regretably 6
Orgo 2 - bout the same as Orgo 1 in all ways, note taking speed has to increase b/c those mechanisms only get longer and cooler. Robinson annulation ftw.
This is usually the precursor to Biochem 1 so no it's not useless.
MCAT usefulness: 3
Physics 1 - medium to flipping hard class, the more important and relatable course that can drive you insane (I've had dreams of free body diagrams and flying off rollercoasters). Requires massive amounts of practice. Also requires somewhat of an imagination. Study time (the more the better because you ain't getting a 90 until you can recite verses from your textbook, minimum of 3-4 X time spent in class)
MCAT usefulness: 5
Physics 2 - medium to hard course and easier than physics 1. It is much more abstract and requires much more imagination because you can't physically see the issues (magnetic field, currents, waves, etc.). Again, practice is mandatory. Study time (2-3 X time spent in class at least)
MCAT usefulness: 7
Biochemistry - medium to hard course that is similar to bio but is flavored with literally most of the sciences. A knowledge of chem, Orgo 1, and bio both 1 and 2 is highly recommended. This science is most relevant for Med school and should be taken seriously. Slide review w/ textbook supplement and khan videos. Study Time ( 3-4 X time spent in class)
MCAT usefulness: 10
Good luck