Transport in Mammals (1) Biology AS Level
CIE
AS & A Level
Biology (9700)
فروردین
2010
شامل مباحث:
UNIT 8: Transport in mammals
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 cardiac cycle are correct?
1- The atrioventricular valves close during atrial systole.
2- The left and right ventricles contract together.
3- There is a time delay as the electrical impulse passes from the atrioventricular node to the sinoatrial node.
4- Electrical impulses pass along the Purkyne tissue to the ventricles.
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