One of the first topics covered in the Lower 6th course is 'Proteins'.
Read the PDF file below to start learning about some of the huge variety of different proteins and the processes they contribute to on a biochemical, cellular and whole organism level.
The other topic you will start with is 'Cell Biology'. Carry out some research on the internet and make a list of organelles (parts of a cell) with their function. This will include the standard GCSE organelles, such as a nucleus and cytoplasm, but you will find new organelles exist that you have not heard of. Do this both bacterial, plant and animal cells.