CAIE A-Level Biology A2 14.1.11 Glucose Test Strips and Biosensors Questions
Explain glucose test strips and biosensors using evidence from each question and mark scheme.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- A2
Exam points
- Explain glucose test strips and biosensors.
CAIE A-Level Biology A2 14.1.11 Glucose Test Strips and Biosensors Questions question 1
[Maximum number: 4]
A biosensor is used to measure blood glucose concentration to check that it is within the normal range.
Describe how a glucose biosensor works.
any four from:
1 blood on, pad / strip, inserted into, biosensor / glucometer ;
2 glucose oxidase ;
3 (glucose) → gluconic acid and hydrogen peroxide ;
4 (electric) current / flow of electrons / voltage ;
5 (current) proportional to glucose, quantity / concentration ;
6 digital / numerical, reading (on screen) ;
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