9700/13 Biology May Jun 2022 Online Test | Cambridge AS and A Level MCQ
Cambridge
AS & A Level
Biology (9700)
شهریور
2022
مشاهده نمونه سوال
شامل مباحث:
AS Level
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
75 دقیقه
پیش نمایش صفحه اول فایل
Neda Bani In chronic obstructive pulmonary disease (COPD), airflow through the airways is reduced.
Which statements explain the reduced airflow?
1 More mucus is secreted into the airways.
2 Airways and alveoli lose their elasticity.
3 Many of the alveoli are destroyed.
4 Carbon monoxide binds irreversibly to haemoglobin.
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