Edexcel IGCSE Biology Safe Experimental Methods
Practise Edexcel IGCSE Biology safe experimental methods by explaining apparatus functions, safety precautions and steps that keep tests valid.
- Syllabus
- Issue 3 (2024)
- Course
- Biology 4BI1
Exam points
- Explain apparatus functions, such as wire mesh separating organisms from indicator solution.
- State safety precautions for heating or handling apparatus, including eye protection or tongs.
- Explain validity steps such as removing nitrates or blocking light to prevent photosynthesis.
Appropriate and safe experimental methods question 1
Scientists have genetically modified soya plants so that the soya beans they produce contain less saturated fat.
The scientists produced one transgenic soya plant. Micropropagation was then used to make multiple copies of this transgenic soya plant.
A student uses this equipment to compare the energy content of transgenic soya beans with the energy content of non-transgenic soya beans.
Give one safety precaution that the student should take when using the apparatus.
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