Daily Practice

GCSE Science

12th July 1992

5 questions · GCSE · 584 questions in this band

1
Transport in and out of Cells
State three factors that increase the rate of diffusion.
2
Organisation
An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
3
The Digestive System and Enzymes
What is an enzyme?
4
The Circulatory System and Heart
State the function of the valves in the heart and in veins.
5
Plant Tissues, Transport and Transpiration
Where are most stomata found on a typical leaf, and why?

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