BI-749
Why life depends on photosynthesis
Biology · Secondary 3 · Easy · Why life depends on photosynthesis
In an investigation, a leaf is tested for starch at the start of the day and again after 6 hours in bright sunlight. Which result shows that photosynthesis has occurred during the 6 hours?
- No starch at start; starch present after 6 hours
- Starch present at start; no starch after 6 hours
- Starch present at both times
- No starch at either time
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