Daily Practice

GCSE Science

21st September 1991

5 questions · GCSE · 584 questions in this band

1
Organisation
An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
2
The Digestive System and Enzymes
Describe the positive result of the Biuret test.
3
The Circulatory System and Heart
Give two adaptations of a red blood cell.
4
Plant Tissues, Transport and Transpiration
State two conditions that increase the rate of transpiration.
5
Infection 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.

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 September 1991, including the monthly compilation PDF.