Mood Disorders: Depression & Bipolar

Below is a series of questions designed to have you think along the lines of applicability.

Your client asks you to describe how genetics and brain chemistry could be influencing their depression. Prepare a one paragraph response that you can rely on in such situations (called a ‘canned response’) and share it with the class. You will need this kind of dialog ready when yu encounter this question: frequently.
A client reports they are terribly afraid that they’ll become addicted to medication if they start taking it for the depression. What can you tell them?
The same client, who scored 24 on the CES-D reports that they use cocaine throughout the evening nearly every Friday and Saturday. What’s your advice? How you present it to them?
Take your copy of the CES-D inventory and compare each item to the criteria for a major depressive disorder found on page 160-161 of the DSM 5. What seem to be the core concepts of depression that the instrument is operationalizing? What criteria are in DSM that the instrument is glossing over or not measuring at all?
In just a couple of line please state what specifically is the basic difference between bipolar 1 bipolar 2?