I can give help for two and three.
2. The Constitution states the three branches and what they do in the Articles.
3. Amendment one states the five freedoms citizens have.
As for 1, it may be that the Constitution shows that citizens give the government power while the government protects the people?
Answer:
In the Declaration of Independence, Thomas Jefferson announced that every human being has “certain unalienable rights,” among which are those to “life, liberty, and the pursuit of happiness.”