CAIE A-Level Biology A2 15.1.8 Refractory Period Questions
Explain the refractory period of a neurone using evidence from each question and mark scheme.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- A2
Exam points
- Explain the refractory period of a neurone.
CAIE A-Level Biology A2 15.1.8 Refractory Period Questions question 1
Fig. 8.1 shows the changes in potential difference (p.d.) across the membrane of a receptor cell over a period of time. The membrane was stimulated at time A and at time B with stimuli of different intensities.
Fig. 8.1
Describe the importance of the refractory period in the transmission of action potentials.
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