You need at least one year of biology, along with the accompanying labs. For example, if you take Cell Biology, you must take the Cell Biology lab to go along with it. You could not take a Biochemistry lab; the lab must correspond with the class.
One year of inorganic chemistry (general chemistry) with labs and one year of organic chemistry, along with its correlating lab are required.
A year of college-level physics is required for medical school. If you have already taken calculus when you enter college, you can take physics early in your college career.
Math coursework equaling one year is required by medical schools. Some schools still require calculus while others will accept coursework in statistics. You should check the requirement for the school(s) you wish to attend.
A semester of biochemistry is required by about 30 medical schools. It can be counted as a biology course or a chemistry course depending upon other courses the applicant has taken; it is left up to the discretion of the medical school.
Medical schools expect applicants to have taken a year of college English as a minimum. Beginning English classes would fulfill the requirement, but writing intensive classes are even better. They are looking for literature and writing-based English courses, and the titles of the courses should directly reflect their content.
Other social science and humanities courses are not required. However, medical schools are looking for students who show interest in subjects other than science. Courses in philosophy, political science, economics, history, foreign languages and art demonstrate that a potential student has varied intellectual curiosity.