9700/12 Biology May Jun 2018 Online Test | Cambridge AS and A Level MCQ
Cambridge
AS & A Level
Biology (9700)
شهریور
2018
مشاهده نمونه سوال
شامل مباحث:
AS Level
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه
پیش نمایش صفحه اول فایل
Gama Admin Liver cells contain membrane-bound organelles called peroxisomes, which contain the enzyme catalase. This enzyme hydrolyses hydrogen peroxide into water and oxygen gas.
A student cut two identical sized pieces of liver and placed one in a refrigerator at ${5^ \circ }C$ and the other in a freezer at $ - {18^ \circ }C$.
After 12 hours both pieces were raised to room temperature and placed in equal volumes of hydrogen peroxide.
The liver…
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