C1.3.2—CO₂ → glucose
Photosynthesis uses carbon dioxide as a carbon source to make glucose, starch, oils and other organic compounds in plant cells.
- Syllabus
- First assessment 2025
- Objective
- C1.3.2
- Level
- HL
Exam analysis
Chance of appearing1%of analysed past papers
Latest appearanceMay 2021
Most common paperPaper2
Typical marks1
Common command terms
- State
- Outline
- Predict
- Suggest
Recent exam appearances
May 2021Paper2 ["HL"] · TZ23(e)[ 1 ]C1.3.2—CO₂ → glucose
Practice this objective
Coverage 2021–2021 · Updated 15 Jul 2026
Concept essentials
- Carbon dioxide is the source of carbon for photosynthetic carbohydrates.
- Light supplies the energy needed to convert carbon dioxide into reduced carbon compounds.
- Glucose can be stored as starch or converted into other organic molecules.
- Photosynthetic carbon dioxide uptake can change pH in aquatic systems.