IB Biology SL 4.2.9 Energy release Question Bank
Practise IB Biology SL 4.2.9 by identifying respiration and gas exchange as processes that release carbon dioxide from marine organisms.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Identify cellular respiration or gas exchange as a process that releases carbon dioxide from an organism.
- Distinguish carbon-dioxide loss from photosynthetic uptake in marine systems.
C4.2.9—Energy release question 1
The mass of an individual organism can affect its physiology and feeding ecology. The diagram shows the relative mass of carbon (black) and total wet mass (grey) of a marine crustacean, Calanus hyperboreus and a jellyfish, Bathocyroe fosteri.
State one process that results in the loss of carbon dioxide from a marine organism such as a crustacean or a jellyfish.
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