BI-2064
Photosynthesis equation
Biology · Secondary 4 · Medium · Photosynthesis equation
A student sets up an experiment to test whether carbon dioxide is needed for photosynthesis. Before starting, she keeps the plant in complete darkness for 24 hours. Why is this step necessary?
- to ensure any starch found later was made during the experiment
- to increase the rate of photosynthesis during the experiment
- to stop enzymes in the leaf from working before the experiment
- to make the plant absorb more carbon dioxide at the start
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