Reading electrical recordings of neurons

Biologia IBPaper 1A, maj 2025, TZ1wzorowane1 pktzamkniętełatwe (szac.)

Zadanie 17

The trace shows a neuronal action potential. At which labelled region do voltage-gated sodium channels open during this action potential? A. P B. R C. Q D. S

• Materiał graficzny

Biologia IBPaper 1B, listopad 2025, TZ1wzorowane1 pktotwarteśrednie (szac.)

Zadanie 3a

State the instrument used to display resting and action-potential voltage signals.

Biologia IBPaper 1, listopad 2023, TZ1wzorowane1 pktzamkniętełatwe (szac.)

Zadanie 19

Four stimuli of increasing strength are applied at t1–t4. Which inference is supported by the trace? A. The fourth response rises by only 32 mV from rest B. The threshold is approximately −32 mV C. Only the fourth stimulus changes membrane potential at all D.…

• Materiał graficzny

Biologia IBPaper 1, listopad 2023, TZ2wzorowane1 pktzamkniętełatwe (szac.)

Zadanie 19

Four stimuli of increasing strength are applied at t1–t4. Which inference is supported by the trace? A. The fourth response rises by only 32 mV from rest B. The threshold is approximately −32 mV C. Only the fourth stimulus changes membrane potential at all D.…

• Materiał graficzny

Biologia IBPaper 2, maj 2022, TZ1wzorowane1 pktotwarteśrednie (szac.)

Zadanie 3a

State the approximate potential at X.

• Materiał graficzny