Ask the students who went the previous year. Read through all materials in our Resource Room on Oxbridge. Read the evaluations written by students who have been there. The tutors you will have for your tutorials are all professors. This is not like a section in the US taught by a grad student.
Assignments come from the tutorials, where most of the interaction goes on.
Tutorials, classes, and lectures are university based, as are all student activities, unions, and other services. For many of you, your tutorials will be given by tutors at other colleges, and you will only see a tutor from your college much as you would see your class dean. Just answer the question in your own voice. Keep in mind that Oxbridge likes applicants with a strong background in and dedication to their major field. Let your enthusiasm for what you are studying show.