CAIE IGCSE Biology 4.1.3 Food tests
Practise choosing food-test reagents and reading positive colour changes for starch, sugars, proteins, fats, oils and vitamin C.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- match iodine, Benedict's, biuret, ethanol and DCPIP to the correct nutrient test
- interpret tables of colour changes to decide which food substances are present
4.1.3—Food tests question 1
[Maximum number: 1]
What is the test for protein?
name of the test
heat
colour change
Benedict's
yes
blue to purple
biuret
yes
blue to red
biuret
no
blue to purple
Benedict's
no
blue to red
C
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