Immunity Quiz (1) Biology AS Level
CIE
AS & A Level
Biology (9700)
فروردین
2010
شامل مباحث:
UNIT 11: Immunity
تعداد سوالات: 20
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
25 دقیقه

پیش نمایش صفحه اول فایل
A student wrote three statements about antibodies.
1) Their structure depends on peptide, hydrogen and disulfide bonds.
2) They are protein molecules with both tertiary and quaternary structure.
3) Four polypeptides provide four antigen binding sites.
Which statements are correct?