Every question asks one thing. The mix follows the in-class review — the objectives graded know cold carry the most questions here, and the two explicit skips carry one each — and the groupings match that review's headings, so the score breakdown at the end tells you which objective to go back to.
Lectures 3, 4 and 6 were not covered in that review. They are weighted evenly with the rest rather than lightly, because silence was not a de-emphasis. Both confirmed calculations — the therapeutic index and the decimal reduction — are included.
Answers reveal only after you choose. Your score and a breakdown by objective appear at the end, with a review of everything you missed.