Help with Questions to Macbeth : Act II, Scene 3

Act II, Scene 3

1. The Porter’s scene, or the “knocking at the gate,” is a much debated scene by scholars, but many agree it is the typical comic relief scene seen in Shakespeare’s play. What do you suppose the dramatic point of a comic relief scene is? Why is the Porter’s soliloquy in prose rather than poetry? What lines contain the bawdy humor so often found in these scenes?
2. How is the theme of “a crime against nature” reinforced in this scene?
3. Why does Macduff refer to the murder scene as “a new Gorgon”?
4. Who was suspected of the murder, and what happens to them?
5. Who are Malcolm and Donalbain, what do they suspect, and what decision do they make?