Foundation year science degree

I haven't done any science a levels but would like to study sciences at university. I am looking into doing a foundation degree then going onto doing a science degree (at the moment preferably leaning towards biomedical science). I go to a high achieving sixth form on average get As so far (im in year 12), so I am looking for russell group unis. I currently really like UCL's Arts and Sciences degree as it can combine my humanities subjects which I currently do with my aspiration to go into the science field. However, I don't know if they do like a foundation year in science to get that science background before I can go in and start the course. Would really appreciate so help on this, and if you know any other similar ways that may interest me. Thanks.

I’m not asking anyone to do research for me. I have been researching into this since January and asked my teachers but they haven’t been much help, hence why I came on here. All I was asking is if anyone knows if UCL or and other Russell group unis do foundation years in any fields of science e.g biomedical science. And when I said anything else that may interest me I mean like if someone may be able to kindly share another pathway or option for someone who’s picked the wrong subjects. Saying to check uni entry requirements shows you haven’t read what I wrote as that is where my problem lies. Your comment was very unhelpful for a year 12 student who is currently worried thinking they have made very wrong choices that could impact their later education negatively.