Daily Practice
GCSE Science
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19th March 1992
- 1Cell Division and Stem Cells
How many pairs of chromosomes are there in a human body cell?
- 2Transport in and out of Cells
State three factors that increase the rate of diffusion.
- 3Organisation
State the type of large biological molecule that all enzymes are made from.
- 4The Digestive System and Enzymes
What is an enzyme?
- 5The Circulatory System and Heart
State the function of the valves in the heart and in veins.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of March 1992, including the monthly compilation PDF.