http://web2.assist.org/web-assist/report.do?agreement=aa&reportPath=REPORT_2&reportScript=Rep2.pl&event=19&dir=1&sia=DAC&ria=UCLA&ia=DAC&oia=UCLA&aay=16-17&ay=16-17&dora=CELL+MOL says the following:
ASSIST:
THIS MAJOR IS HIGHLY SELECTIVE; a significant number of preparatory courses should be completed prior to transfer. At minimum, you should complete one year of biology with laboratory, one year of general chemistry with laboratory, one year of calculus, and one semester of organic chemistry with laboratory. Completion of a second semester of organic chemistry or one year of calculus-based physics is strongly recommended.
I.e. the physics sequence is strongly recommended, but not absolutely required. However, due to the level of competition, others applicants with physics complete may have an advantage.