<p>3AL is essential for certain majors. I'm not sure about MCAT.
You can take 3AL a year after taking 3A but you'll need 3AL lab techniques for 3BL. My recommendation is that if you are taking 3A this semester, take 3AL in summer or fall. It will be much easier getting into sections in summer/fall than in spring b/c most freshmen want to take 3A/3AL after chem 1a.</p>
<p>I believe they are changing the requirement b/c of budget cuts and lack of lab space. To be sure, I would talk to Lucia Briggs the ochem lab director about your options.</p>
<p>Yeah, i was considering just taking 3a in the spring and 3al in the summer.
How connected is the 3AL material to 3A? would we still be able to understand the material without the labs? I know in Chem 1A, the labs helped me to reinforce the ideas learned.</p>
<p>The material is almost entirely unconnected. You won't benefit in either class if you're taking them concurrently. It's quite different from 1A. In lab, you focus on learning lab techniques which doesn't really help when it comes to 3A material. </p>
<p>However, you need 3AL to do 3B because 3AL covers NMR, which is tested on a lot in Vollhardt's section (not sure about others). 3B and 3BL are slightly different from 3A/3AL in that there is some overlap in material. 3BL focuses more on running reactions that you learn in 3B. Although this is just a small part of 3BL, I recommend trying to take 3B/3BL together. So for those who cannot get into 3AL, I highly recommend doing 3A spring, 3AL summer, so that you can do 3B/3BL together in the fall and then Bio1A/1AL in the spring (for the premeds). Bio1A/1AL must be taken at the same time.</p>