DP Biology (first assessment 2025)

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Question 23M.1A.SL.TZ1.14

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ1.14
Level SL Paper 1A Time zone TZ1
Command term Question number 14 Adapted from N/A
14.
[Maximum mark: 1]
23M.1A.SL.TZ1.14

The pie chart shows the modes of nutrition of fungi in Huahu Lake wetland in China.

[Source: Fei Xie, Anzhou Ma, Hanchang Zhou, Yu Liang, Jun Yin, Ke Ma, Xuliang Zhuang and Guoqiang Zhuang, 2020.
Revealing Fungal Communities in Alpine Wetlands through Species Diversity, Functional Diversity and Ecological
Network Diversity. Microorganisms, 8, p. 632. Open Access.] 


What is the most common mode of nutrition of fungi in this wetland?


A.  Heterotrophic fungi that feed on living organisms by ingestion

B.  Autotrophic fungi that obtain organic nutrients from detritus by internal digestion

C.  Fungi that have either an autotrophic or heterotrophic method of nutrition

D.  Heterotrophic fungi obtaining nutrients from dead organisms by external digestion

[1]

Markscheme

D