Missing Pre-req's

Hey guys! Im new here, but this has really been bugging me. I searched the forum for answers but a lot of the discussions were vague because the poster was vague. Basically Im applying to UCSD, UCI, and UCSB with chemistry as my primary major. However, for UCSB I will be missing one quarter of organic chemistry. For UCSD I will be missing one quarter of organic chemistry. For UCI I am ok. For UCLA I am applying with biochemistry as my primary major. I am also missing one quarter of organic chemistry and linear algebra.

Basically, can I get away with not having this single course?

A few side questions as well. UCLA requires Multivariable Calculus. Does it require the entire series or just one quarter? I honestly have no idea how it is possible to take the entire calculus series, the entire multivariable calculus series, and the entire linear algebra series by the end of sophomore year.

The other question would be which of those colleges will look at my alternate major (biology, I have all the pre requisites for it) if they decline me for my primary major (I know UCLA will not).

Lastly, the reason I am applying as chem and missing courses is because I am actually a biology major. However I have been convinced from what I have found online that a bio major will be significantly weaker in terms of employment and wage vs a chemistry major. However, what do you guys think. Should I just switch my primary major for these schools to biology since I have all the pre-requisites, or is biology actually as bad as I have found.

Also biology has a lower acceptance rate to almost all these schools since it is so inflated. So College Confidential, please help me haha. Outside of answering the questions, feel free to suggest to me what I should do. I am honestly just lacking clarity on what to do in this situation.

Oh if it is relevant, 3.48 GPA (basically 3.5), probably solid essays, currently attending UCR (so I am trying to do a UC to UC transfer, I am not from a community college). I am not an honors student, though I am on the Dean’s list.

Also I just made the Dean’s list this quarter finally (my GPA has been 3.7 consecutively every quarter, but fall quarter of freshman year was really bad so I did not make it until now). Therefore, it is not on my application yet. Should I bother updating it to add it in? I think it is noted on my transcript anyways isn’t it?

Also any comments on my likelihood to actually succeed in transferring given all this info would be very appreciated!