Learning objective
Explain carbon transfers through photosynthesis, respiration, decomposition, combustion, sequestration and weathering.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Flashcards
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Questions
Topic
Water and carbon cycles
Subtopic
The carbon cycle
Study support
Understand this objective
Quick explanation
Explain carbon transfers through photosynthesis, respiration, decomposition, combustion, sequestration and weathering
- This point belongs to Water and carbon cycles, especially The carbon cycle.
- You need to be able to explain carbon transfers through photosynthesis, respiration, decomposition, combustion, sequestration and weathering.
- The key ideas to know are combustion, respiration, and decomposition.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect The carbon cycle to exam-style questions, flashcards, and revision notes for Water and carbon cycles.
Quick student answer
Which process in the carbon cycle involves the conversion of carbon dioxide into organic matter by plants?
Direct answer
Photosynthesis is the process where plants convert carbon dioxide and sunlight into organic matter.
Key terms
- Carbon Sink: A natural reservoir that stores carbon-containing chemical compounds for an indefinite period, such as forests and oceans.
- Carbon Source: Any process or activity that releases carbon dioxide into the atmosphere, such as fossil fuel combustion.
Common trap
Confusing processes in the carbon cycle: Remember that photosynthesis captures carbon dioxide, while respiration releases it.
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Flashcard prompts
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Revision tools
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Explain inputs, outputs, stores and transfers in water and carbon systems.
Water and carbon cycles as natural systems
- Distinguish positive feedback from negative feedback in natural systems.
Water and carbon cycles as natural systems
- Apply dynamic equilibrium to changes within water and carbon cycles.
Water and carbon cycles as natural systems
- Compare the global distribution and magnitude of water stores in the lithosphere, hydrosphere, cryosphere and atmosphere.
The water cycle
- Explain evaporation, condensation, precipitation and cryospheric transfers at contrasting spatial and temporal scales.
The water cycle