9700/12 Biology Oct Nov 2012 Online Test | Cambridge AS and A Level MCQ
CIE
AS & A Level
Biology (9700)
بهمن
2012
مشاهده نمونه سوال
شامل مباحث:
AS Level
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه

پیش نمایش صفحه اول فایل
The enzyme trypsin hydrolyses proteins to amino acids. Trypsin does not function when the pH is very low as its 3D shape would be changed.
What explains this change in 3D shape?