5090/12 Biology Oct Nov 2021 Quiz | Cambridge O-Level MCQ
Cambridge
O-Level
Biology (5090)
دی
2021
مشاهده نمونه سوال
شامل مباحث:
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه
پیش نمایش صفحه اول فایل
zivar sushu Catalase is an enzyme found in potato tissue. It catalyses the breakdown of hydrogen peroxide into water and oxygen.
hydrogen peroxide $\underrightarrow {\text{catalase}}$ water + oxygen
The apparatus shown was used to investigate the activity of catalase.
Five identical potato discs were dropped into 15 cm$^3$ of a 3% hydrogen peroxide solution at a temperature of 20°C. The time…
