Page 103 - Science Course 1 (Book 1)
P. 103
Mo3-L6b: How Do Cells Make Food?
The chemical reactions of photosynthesis are Photosynthesis
powered by light energy.
When an organism eats plant material it takes in food
In the chloroplasts of plants, pigments such as energy from the plant’s glucose.
chlorophyll absorb light energy
An organism’s cells use the oxygen released during
Chlorophyll absorbs all colors except green light, photosynthesis and convert the food energy into
which is reflected as the green color in leaves. usable energy through cellular respiration.
Oxygen
Glucose Carbon Dioxide
Oxygen Energy
Water
Oxygen
Glucose
Water
Carbon
Dioxide
Key Concept
How Do Cell Make Food?
How do some cells make food
molecules?
SUMMARY
How Do Cells Make Food?
Light energy powers the
chemical reactions of
photosynthesis.
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