Daily Practice

GCSE Science

21st May 1993

5 questions · GCSE · 584 questions in this band

1
Human Defences, Vaccination and Drug Development
Explain what is meant by a double blind trial.
2
Bioenergetics
A lamp is placed 10 cm from pondweed. Calculate the relative light intensity using relative light intensity = 1 / distance^2.
3
Photosynthesis
Why is photosynthesis described as endothermic?
4
Respiration, Exercise and Metabolism
Explain, in terms of respiration, why a build-up of lactic acid causes muscle fatigue during vigorous exercise.
5
Homeostasis and Response
State one difference between nervous and hormonal coordination.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of May 1993, including the monthly compilation PDF.