Biology for IGCSE & O level - Plant Nutrition (Section 8 - No. 6)
What is the purpose of testing a leaf for starch after it has been exposed to light?
To determine if the plant has used all of its stored starch.
To demonstrate that photosynthesis produces glucose and therefore starch.
To show that the leaf contains chlorophyll.
To test the rate of respiration.
Explanation
The presence of starch indicates that photosynthesis has taken place.
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