What classes did you take to get into Berkeley for pre med ?

General recommendation of high school preparation for college:

http://talk.collegeconfidential.com/college-admissions/1995563-faq-high-school-college-prep-base-curriculum.html

Be sure to check the UC a-g requirements for specifics, although applicants competitive for admission typically go beyond the minimum requirements:

http://admission.universityofcalifornia.edu/freshman/requirements/a-g-requirements/index.html