DP Biology (first assessment 2025)

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Question 19N.1A.HL.TZ0.2

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.1A.HL.TZ0.2
Level HL Paper 1A Time zone TZ0
Command term Identify Question number 2 Adapted from N/A
2.
[Maximum mark: 1]
19N.1A.HL.TZ0.2

By which process do potassium ions move through potassium channels in axons?

A. Active transport

B. Exocytosis

C. Facilitated diffusion

D. Simple diffusion

[1]

Markscheme

C

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