Question
Ascientist hypothesized that oxygen atoms from both carbon dioxide and water are used to make glucose during photosynthesis. However, experimental results using oxygen isotopes showed that all of the oxygen from the water up in the oxygen molecules that were produced None of the oxygen from water was found in glucose. What should the scientist do to best gain scientific understanding of this topic? Analyze the results, and change the experimental methods to retest the hypotheses in a different way Discard the faulty results that do not support the original hypothesis, and repeat the experiment using the same methods Analyze the procedural errors that took place in the experiment, and summarize these in a conclusion statement Repeat the experiment and adjust new data to support the original hypothesis
Solution
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Answer
The scientist should **analyze the results and change the experimental methods to retest the hypotheses in a different way.**<br /><br />The experimental results contradict the original hypothesis. This doesn't mean the experiment was faulty, but rather that the initial idea about how photosynthesis works was incorrect. Good scientific practice involves adapting and refining hypotheses based on evidence. Discarding results or manipulating data to fit a preconceived notion is scientifically unsound. The scientist needs to revise their understanding of photosynthesis based on the new data and devise new experiments to explore the process further.<br />
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