In the standard experiment to show that oxygen is given off during photosynthesis, sodium bicarbonate is used to
-
A.
neutralize the acid in water -
B.
supply mineral salt to water plant -
C.
supply carbondioxide for photosynthesis -
D.
kill micro-organisms in water
Correct Answer: Option C
Explanation
The bicarbonate solution will provide the elodea with the carbon dioxide it needs to use photosynthesis.