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WorksheetsPhotosynthesis
Total questions: 17
Worksheet time: 9mins
When we started our plant lab, the water in the test tube was yellow because it was acidic and high in
oxygen
carbon dioxide
sugar
nitrogen
During the plant lab, the elodea plant sat in the test tube in under lights for 24 hours. During this time, the water turned blue. Why?
The elodea plants dyed the water blue
The elodea plants took oxygen out of the water
The elodea plants put sugar (glucose) into the water
The elodea plants took carbon dioxide out of the water
During the elodea lab we added BTB (Bromothymol Blue) to the water because
the BTB was used by the plants as food.
the BTB changed the water yellow.
the BTB acted as an indicator to show when the water was acidic.
the BTB was an enzyme that digested the plant cells.
The chemical equation for photosynthesis is
Carbon dioxide + Water --> Glucose + Oxygen
Glucose + Carbon Dioxide --> Oxygen + Water
Oxygen + Carbon Dioxide --> Glucose+ Water
Sunlight + Carbon Dioxide --> Oxygen + Water
CO2 is the chemical formula for
oxygen
nitrogen
carbon dioxide
glucose
H2O is the chemical formula for
Water
Oxygen
Carbon Dioxide
Glucose
