Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 1Organisation
An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
- 2The Digestive System and Enzymes
Where is bile made and where is it stored?
- 3The Circulatory System and Heart
Why is the wall of the left ventricle thicker than that of the right ventricle?
- 4Plant Tissues, Transport and Transpiration
Why are xylem cells strengthened with lignin?
- 5Infection and Response
Explain why a small number of healthy volunteers are given a very low dose of a new drug in the first stage of a clinical trial.
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