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IB Biology SL C4.2.13 Heat Loss Questions

Cell respiration converts some chemical energy to heat at every trophic level. That heat dissipates to the environment and cannot be recycled. This is the heat-loss focus of IB Biology SL C4.2.13.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Identify heat as an energy loss between trophic levels that cannot be recycled.

IB Biology SL C4.2.13 Heat Loss Questions question 1

[Maximum number: 1]

What is lost between trophic levels in ecosystems and cannot be recycled?

A

Heat

B

Nitrogen

C

Carbon compounds

D

Biomass

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