Hello aspirant,

I will suggest you

If you want to study physiology during your 11th grade, it is most likely the Arts group.

If you want to study physiology in the future, you can do so with any group.

At the end of the day, physiology usually fits into Arts and Social Sciences.

The best confirmation on what to take up is to ask your college/institution as this group-selection usually differs from country to country or even institutions.

Hope this helps you

All the best for your future