Medical Undergrad Education: Order/number of pre-med classes to take at once?

[Harlequin]

Hi,

I am adding pre-med a bit late. I was told these were the basic required pre-med classes:

one year of ...

Chemistry
Biology
Organic Chemistry
Physics
Calculus (and English, but I have that already)

So I was wondering when and how most people incorporate these into their schedule? (particularly those who aren't majoring in Biology or Chemistry)

Like, do most people take one lab per semester? Are there any recommended you take together (like calc and physics)? Any particular order...?

See, because I'm a bit behind, I was considering taking Biology and Chemistry at once, then physics and organic chemistry at during the same semesters. How reasonable is this?

Thanks.