Daily Practice · GCSE Science

Daily Practice - GCSE Science

14th May 1998

5 questions · GCSE · 584 questions in this band

1
Transport in and out of Cells
Name the process that moves substances against a concentration gradient.
2
Organisation
Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
3
The Digestive System and Enzymes
Where is bile made and where is it stored?
4
The Circulatory System and Heart
Why is the wall of the left ventricle thicker than that of the right ventricle?
5
Plant Tissues, Transport and Transpiration
Why are xylem cells strengthened with lignin?

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