9700/12 Biology May Jun 2012 Online Test | Cambridge AS and A Level MCQ
Cambridge
AS & A Level
Biology (9700)
شهریور
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
Which statements about the formation of haemoglobinic acid are correct?
1) It is linked to the action of carbonic anhydrase.
2) It prevents blood from becoming too acidic by removing excess hydrogen ions.
3) It can only occur when oxygen associates with haemoglobin.