IB Biology SL 8.3.1 Photosynthesis and light energy Question Bank
Practise IB Biology SL 8.3.1 by explaining how chlorophyll captures light and how leaf cells convert it into chemical energy.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain how chlorophyll absorbs light energy and transfers it into photosynthetic reactions.
- Relate chloroplast structure and light absorption to production of energy-rich organic compounds in leaves.
C1.3.1—Light energy → chemical energy question 1
[Maximum number: 5]
Describe how leaf cells make use of light energy.
a. leaf cells contain chloroplasts;
b. light is absorbed by chlorophyll (in chloroplasts);
c. other pigments absorb different wavelengths;
d. light energy is used in photosynthesis;
e. (light is needed) to combine water and carbon dioxide/fix carbon dioxide;
f. carbon compounds/organic compounds/glucose/starch/carbohydrate are produced;
g. blue and red light is absorbed;
h. perform photolysis
OR
split water molecules;
Wavelengths accepted for mpg
5 max
All question bank results loaded