Check my AS bio answer (mark scheme)

OK so I'm new to biology A level & I've heard that the mark scheme is VERY fussy & specific. I'm not sure how fussy it is though.

In my answer to the following questions (See attached images) I stated the first two points of the MS but didn't use the word 'chemical bond' & instead used the word 'link'. Would I still get the marks? Just trying to gauge out early on how fussy it might be.