DP Biology (first assessment 2025)

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Question SPM.1A.HL.TZ0.34

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Date May Specimen-2023 Marks available [Maximum mark: 1] Reference code SPM.1A.HL.TZ0.34
Level HL Paper 1A Time zone TZ0
Command term Question number 34 Adapted from N/A
34.
[Maximum mark: 1]
SPM.1A.HL.TZ0.34

Yersinia pestis is a bacterium that caused an outbreak of bubonic plague in the 14th century. It normally produces ATP in the presence of oxygen but can still produce ATP if oxygen is absent.
Which term describes this characteristic?


A.  Facultative respiration

B.  Facultative anaerobe

C.  Obligate anaerobe

D.  Obligate aerobe

[1]

Markscheme

B

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