Revision NotesExam Questions
IBEnvironmental Systems & Societies (ESS)DPSLExam Questions2. Ecology2.2 Energy & Biomass in Ecosystems

Syllabus Edition

First teaching 2024

First exams 2026

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Energy & Biomass in Ecosystems (DP IB Environmental Systems & Societies (ESS): SL): Exam Questions

14 mins9 questions
11 mark

State the first law of thermodynamics.

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21 mark

State the other term or name used for the first law of thermodynamics.

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32 marks

State two examples of biodegradable pollution.

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41 mark

Identify the biological process shown in the figure below.

1-5-biomagnification

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52 marks

State the word equation for aerobic respiration.

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61 mark

State the main energy transformation occurring during respiration.

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73 marks

Construct a systems diagram to represent photosynthesis.

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81 mark

State the main energy transformation occurring during photosynthesis.

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92 marks

Define bioaccumulation.

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