This is a great platform for the much more free and insightful Part II Biochemistry course which I strongly recommend. Unfortunately, this means that the Part IB course involves dense lecture hand-outs which are full of molecular biology. However, the biochemistry department has superb lecturers which make them bearable.
Supervision at Catz is equally good, and you won’t be lacking in support. The bottom line is: don’t let the detail deter you!