What did the experiment described in the paragraph show about KOH?
What did the experiment described in the paragraph show about KOH?
KOH is required for photosynthesis
KOH is not required for photosynthesis
KOH has a positive effect on photosynthesis
KOH has a negative effect on photosynthesis
Solution
The experiment described in the paragraph showed that KOH has a negative effect on photosynthesis. This is concluded from the observation that the portion of the leaf in the test tube with KOH, which absorbs CO₂, tested negative for starch while the portion that was exposed to air tested positive.