Constitutional and Administrations Law

Answers these questions below:
1. The definition/ purpose of a constitution and the reasons that states have them, and the different types of constitution, also the definitions, explanation and importance of constitutionalism. (see seminar 1).(1100 words)

2. The definition and examples of constitutional conventions and in particular examine the convention of ministerial responsibility to a problem scenario. (see seminar 5).(1100 words)
The questions above are my questions exams there are two question the first one is about constitution, and the second one is about the constitutional conventions please separate of them answer the first alone and the second alone.