Immunity Quiz (2) 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
omer uner Which statements explain why some vaccines can be taken by mouth but tuberculosis (TB) vaccine has to be injected?
1 Macrophages present antigens in vaccines to stimulate an immune response.
2 The TB antigens necessary to produce an immune response are proteins which would be digested in the stomach and small intestine.
3 There are no B-lymphocytes and T-lymphocytes in the stomach.
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...