9700/13 Biology May Jun 2010 Online Test | Cambridge AS and A Level MCQ
CIE
AS & A Level
Biology (9700)
شهریور
2010
مشاهده نمونه سوال
شامل مباحث:
AS Level
تعداد سوالات: 39
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه

پیش نمایش صفحه اول فایل
The diagram is a drawing made from an electron micrograph showing a cross-section of an alveolus and two adjacent capillaries.
What is the shortest distance travelled by an oxygen molecule diffusing from the alveolar air space into one of the red blood cells?