Hello,
For entry level in Manchester University UK, you need grades A*AA-ABB, including Chemistry and one of Biology, Physics and Mathematics (the Core Sciences). A minimum grades AB in at least two Core Sciences and pass the practical assessments in these subjects is needed.

English language test is conducted in all the Universities of UK for different courses.

University of Edinburgh conducts SQAAdvanced Highers: AAA in one set of exams to include Biology, Chemistry, and either Physics or Mathematics.

A Levels: A*AA is also one set of exams in Biology, Chemistry, and either Mathematics or Physics.

Different options and exams are conducted from different Universities.

Best wishes

Thanks