Will my GCSEs make a difference?

I was wandering if the subjects I choose for my options and my grades in my GCSEs will impact on my chances of being a lawyer?

Although I am only in Year 8 I have to pick my GCSEs soon and I was wandering if the subjects I choose for my options and my grades in my GCSEs will have an effect on my chances of being a lawyer? Or is it only really the A-levels that matter? I know I’m a bit young to be worrying about this yet I feel that if I know this I won’t be too worried about it once everything is in place. I thought for my options: English, Math, Science, History, ICT, Business studies and Law