Gas Exchange Quiz (2) Biology AS Level
Cambridge
AS & A Level
Biology (9700)
فروردین
2010
شامل مباحث:
UNIT 9: Gas exchange
تعداد سوالات: 20
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
25 دقیقه
پیش نمایش صفحه اول فایل
omer uner Which statements about the human gas exchange system are correct?
1) The absence of cartilage in small bronchioles allows them to expand.
2) The walls of the alveoli are made of cuboidal epithelium.
3) Alveoli secrete a substance which reduces surface tension.
4) The trachea and bronchi are supported by rings of cartilage.
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