Daily Practice

GCSE Science

4th May 1993

5 questions · GCSE · 584 questions in this band

1
Plant Tissues, Transport and Transpiration
Why are xylem cells strengthened with lignin?
2
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.
3
Communicable Diseases and Pathogens
How do bacteria make a person feel ill?
4
Human Defences, Vaccination and Drug Development
Why does a vaccinated person not usually become ill when they meet the pathogen?
5
Bioenergetics
Name the organelle in a plant cell where photosynthesis takes place.

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