9700/13 Biology May Jun 2020 Online Test | Cambridge AS and A Level MCQ
Cambridge
AS & A Level
Biology (9700)
شهریور
2020
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
Neda Bani Features of four proteins, W, X, Y and Z, are described below.
W consists of two polypeptides held together by disulfide bonds
X consists of three polypeptides tightly coiled together
Y consists of four polypeptides each with a prosthetic group
Z consists of four polypeptides held together by disulfide bonds
Which row correctly identifies the named proteins?
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