If you go to most schools you should be able to find resumes for the recently graduated class. In every case these resumues are all one page long. Considering they also have the addition of their b-shool education and activities I see no reason why anyone's resume should be longer going into b-school. Work experience(company x, y, z), education and additional. The main difference being that your work experience should go before you education because it is more relevent. I'm sure every case is different but most of the people I have come into contact with all recomment a cronological resume over a function resume when applying to b-school. It help to show your growth and explain why you want to attend.
Here is an excerpt from mba.com that I though explained the subject well:
Résumé Tips for Those Who Plan to Change Careers through a Full-Time MBA
Order and Format
Use the reverse-chronological format and leverage what you can from previous experience to support your career transition. Before attending b-school, you may not have any real experience in your desired new field, but you must at least show exposure to the field through some recent connection. For example, think of the work activities or experiences that helped you decide on this career change, and communicate these on your résumé. For example, in your current company, you may have worked on a team, provided support to, or shared resources with people in another department, and that may have piqued your interest in a career change. Or, you may have come into contact with people in a particular industry that you decided you want to work in. Or, you may work or have worked in the industry you plan to remain in when you pursue a new functional role. In short, in your reverse-chronological résumé, make it easy for someone reading it to see how your previous experience and education trace a clear path to your career goal.
Work Experience
Emphasize experience that will help you achieve your goals, and tie your experience as much as possible to the field in which you wish to work. If some of your experience must be mentioned because it accounts for where you were at a certain point in time but is not relevant to your current goals, explain it with as few words as possible. For example, a former accountant who is pursuing an MBA to launch a career in consumer product management might describe his accounting role in one or two lines, then add that he "worked with four large consumer products clients and developed strong profit-and-loss (P & L) skills up to [a number of] dollars." This type of information on a résumé emphasizes the relevance of the accountant’s experience to a career in consumer product management.