ucas application

I am a year 12 pupil & I need some clarity around the process of applying for UCAS applications, please.
I am an aspiring Medic & will be putting in my applications this coming summer.
My Queries:
When we apply for UCAS, do we include our results from end of year 12 exams, along with UCAT score or do we get predicted grades at end of year 12, & if so, what is included in arriving at these predicted grades.. ..only our end of year 12 assessments or are the results from assessments we have had throughout the year used to decide this?

I understand, our UCAT score plus personal statement & CV will need to be sent alongside. Anything else needs sending too ??
Thanks